STAT 200 UMGC W7 Inferential Statistics Data Analysis Questionnaire: Statistics Answers 2021

STAT 200 UMGC W7 Inferential Statistics Data Analysis Questionnaire: Statistics Answers 2021

Question Title:

STAT 200 UMGC W7 Inferential Statistics Data Analysis Questionnaire

Full Question:

Unformatted Attachment Preview

University of Maryland Global Campus
Assignment #3: Inferential Statistics Analysis and Writeup
Identifying Information
Student (Full Name):
Class:
Instructor:
Date:
NOTE: Review the instructions; this file does not detail ALL requirements for this assignment. Remove all
red-text instructions from this template prior to submission. Save the file as a word document or pdf
with the title ?Last Name, First Name ? Assignment 3? (do not submit a rtf file).
Part A: Inferential Statistics Data Analysis Plan and Computation
Introduction:
Variables Selected:
Table 1: Variables Selected for Analysis
Variable Name in the Data Set
Variable Type
Variable 1:
Socioeconomic
Variable 2:
Expenditure
Variable 3:
Expenditure
Description
Qualitative or Quantitative
Data Set Description and Method Used for Analysis:
Briefly describe the data set, using information provided with data set and write up in Assignment #2.
Also describe what method(s) (i.e., free web applets, Excel, TI Calculator) you used to analyze the data.
1. Confidence Interval Analysis: For one expenditure variable, select and run the appropriate method
for estimating a parameter, based on a statistic (i.e., confidence interval method) and complete the
following table (Note: Format follows Kozak outline):
Table 2: Confidence Interval Information and Results
Name of Variable:
STAT200: Assignment #3 ? Inferential Statistics Analysis and Writeup
Page 1 of 4
State the Random Variable and Parameter in Words:
Confidence interval method including confidence level and rationale for using it:
State and check the assumptions for confidence interval:
Method Used to Analyze Data:
Find the sample statistic and the confidence interval:
Statistical Interpretation:
2. Hypothesis Testing: Using the second expenditure variable (with socioeconomic variable as the
grouping variable for making two groups), select and run the appropriate method for making decisions
about two parameters relative to observed statistics (i.e., two sample hypothesis testing method) and
complete the following table (Note: Format follows Kozak outline):
Table 3: Two Sample Hypothesis Test Analysis
Research Question:
Two Sample Hypothesis Test that Will Be Used and Rationale for Using It:
State the Random Variable and Parameters in Words:
State Null and Alternative Hypotheses and Level of Significance:
Method Used to Analyze Data:
Find the sample statistic, test statistic, and p-value:
Conclusion Regarding Whether or Not to Reject the Null Hypothesis:
STAT200: Assignment #3 ? Inferential Statistics Analysis and Writeup
Page 1 of 4
Part B: Results Write Up
Confidence Interval Analysis:
Two Sample Hypothesis Test Analysis:
Discussion:
STAT200: Assignment #3 ? Inferential Statistics Analysis and Writeup
Page 1 of 4
STAT 200 Week 7 Homework Problems
10.1.2
Table #10.1.6 contains the value of the house and the amount of rental income in a year that the
house brings in (?Capital and rental,? 2013). Create a scatter plot and find a regression equation
between house value and rental income. Then use the regression equation to find the rental
income a house worth $230,000 and for a house worth $400,000. Which rental income that you
calculated do you think is closer to the true rental income? Why?
Table #10.1.6: Data of House Value versus Rental
Value Rental
Value Rental
Value
81000
6656
77000
4576
75000
95000
7904
94000
8736
90000
121000
12064 115000
7904 110000
135000
8320 130000
9776 126000
145000
8320 140000
9568 140000
165000
13312 165000
8528 155000
178000
11856 174000
10400 170000
200000
12272 200000
10608 194000
214000
8528 208000
10400 200000
240000
10192 240000
12064 240000
289000
11648 270000
12896 262000
325000
12480 310000
12480 303000
Rental
7280
6240
7072
6240
9152
7488
9568
11232
10400
11648
10192
12272
Value
67500
85000
104000
125000
135000
148000
170000
190000
200000
225000
244500
300000
Rental
6864
7072
7904
7904
7488
8320
12688
8320
8320
12480
11232
12480
10.1.4
The World Bank collected data on the percentage of GDP that a country spends on health
expenditures (?Health expenditure,? 2013) and also the percentage of women receiving prenatal
care (?Pregnant woman receiving,? 2013). The data for the countries where this information are
available for the year 2011 is in table #10.1.8. Create a scatter plot of the data and find a
regression equation between percentage spent on health expenditure and the percentage of
women receiving prenatal care. Then use the regression equation to find the percent of women
receiving prenatal care for a country that spends 5.0% of GDP on health expenditure and for a
country that spends 12.0% of GDP. Which prenatal care percentage that you calculated do you
think is closer to the true percentage? Why?
Table #10.1.8: Data of Health Expenditure versus Prenatal Care
Health Prenatal
Expenditure Care (%)
(% of GDP)
9.6
47.9
54.6
3.7
93.7
5.2
84.7
5.2
100.0
10.0
4.7
4.8
6.0
5.4
4.8
4.1
6.0
9.5
6.8
6.1
42.5
96.4
77.1
58.3
95.4
78.0
93.3
93.3
93.7
89.8
10.2.2
Table #10.1.6 contains the value of the house and the amount of rental income in a year that the
house brings in (?Capital and rental,? 2013). Find the correlation coefficient and coefficient of
determination and then interpret both.
Table #10.1.6: Data of House Value versus Rental
Value Rental
Value Rental
Value
81000
6656
77000
4576
75000
95000
7904
94000
8736
90000
121000
12064 115000
7904 110000
135000
8320 130000
9776 126000
145000
8320 140000
9568 140000
165000
13312 165000
8528 155000
178000
11856 174000
10400 170000
200000
12272 200000
10608 194000
214000
8528 208000
10400 200000
240000
10192 240000
12064 240000
289000
11648 270000
12896 262000
325000
12480 310000
12480 303000
Rental
7280
6240
7072
6240
9152
7488
9568
11232
10400
11648
10192
12272
Value
67500
85000
104000
125000
135000
148000
170000
190000
200000
225000
244500
300000
Rental
6864
7072
7904
7904
7488
8320
12688
8320
8320
12480
11232
12480
10.2.4
The World Bank collected data on the percentage of GDP that a country spends on health
expenditures (?Health expenditure,? 2013) and also the percentage of women receiving prenatal
care (?Pregnant woman receiving,? 2013). The data for the countries where this information is
available for the year 2011 are in table #10.1.8. Find the correlation coefficient and coefficient
of determination and then interpret both.
Table #10.1.8: Data of Health Expenditure versus Prenatal Care
Health Prenatal
Expenditure Care (%)
(% of GDP)
9.6
3.7
5.2
5.2
10.0
4.7
4.8
6.0
5.4
4.8
4.1
6.0
9.5
6.8
6.1
47.9
54.6
93.7
84.7
100.0
42.5
96.4
77.1
58.3
95.4
78.0
93.3
93.3
93.7
89.8
10.3.2
Table #10.1.6 contains the value of the house and the amount of rental income in a year that the
house brings in (?Capital and rental,? 2013).
Test at the 5% level for a positive correlation between house value and rental amount.
Table #10.1.6: Data of House Value versus Rental
Value Rental
Value Rental
Value
81000
6656
77000
4576
75000
95000
7904
94000
8736
90000
121000
12064 115000
7904 110000
135000
8320 130000
9776 126000
145000
8320 140000
9568 140000
165000
13312 165000
8528 155000
178000
11856 174000
10400 170000
200000
12272 200000
10608 194000
214000
8528 208000
10400 200000
240000
10192 240000
12064 240000
289000
11648 270000
12896 262000
325000
12480 310000
12480 303000
Rental
7280
6240
7072
6240
9152
7488
9568
11232
10400
11648
10192
12272
Value
67500
85000
104000
125000
135000
148000
170000
190000
200000
225000
244500
300000
Rental
6864
7072
7904
7904
7488
8320
12688
8320
8320
12480
11232
12480
10.3.4
The World Bank collected data on the percentage of GDP that a country spends on health
expenditures (?Health expenditure,? 2013) and also the percentage of women receiving prenatal
care (?Pregnant woman receiving,? 2013). The data for the countries where this information is
available for the year 2011 are in table #10.1.8.
Test at the 5% level for a correlation between percentage spent on health expenditure and the
percentage of women receiving prenatal care.
Table #10.1.8: Data of Health Expenditure versus Prenatal Care
Health Prenatal
Expenditure Care (%)
(% of GDP)
9.6
47.9
54.6
3.7
93.7
5.2
84.7
5.2
100.0
10.0
42.5
4.7
96.4
4.8
77.1
6.0
58.3
5.4
95.4
4.8
78.0
4.1
93.3
6.0
93.3
9.5
93.7
6.8
89.8
6.1
11.1.2
Researchers watched groups of dolphins off the coast of Ireland in 1998 to determine what activities the
dolphins partake in at certain times of the day (?Activities of dolphin,? 2013). The numbers in table
#11.1.6 represent the number of groups of dolphins that were partaking in an activity at certain times of
days. Is there enough evidence to show that the activity and the time period are independent for
dolphins? Test at the 1% level.
Table #11.1.6: Dolphin Activity
Activity
Travel
Feed
Social
Column
Total
Morning
6
28
38
72
Period
Noon
Afternoon
6
14
4
0
5
9
15
23
Evening
13
56
10
79
Row
Total
39
88
62
189
11.1.4
A person?s educational attainment and age group was collected by the U.S. Census Bureau in 1984 to
see if age group and educational attainment are related. The counts in thousands are in table #11.1.8
(?Education by age,? 2013). Do the data show that educational attainment and age are independent?
Test at the 5% level.
Table #11.1.8: Educational Attainment and Age Group
Age Group
Education
25-34
35-44
45-54
55-64
Did not
5416
5030
5777 7606
complete
HS
Competed
16431
1855
9435 8795
HS
College 1-3
8555
5576
3124 2524
years
College 4 or
9771
7596
3904 3109
more years
Column
Total
40173
20057
22240 22034
>64
13746
Row
Total
37575
7558
44074
2503
22282
2483
26863
26290
130794
11.2.4
In Africa in 2011, the number of deaths of a female from cardiovascular disease for different age groups
are in table #11.2.6 (?Global health observatory,? 2013). In addition, the proportion of deaths of
females from all causes for the same age groups are also in table #11.2.6. Do the data show that the
death from cardiovascular disease are in the same proportion as all deaths for the different age groups?
Test at the 5% level.
Table #11.2.6: Deaths of Females for Different Age Groups
Age
5-14 15-29 30-49 50-69 Total
Cardiovascular
8
16
56
433
513
Frequency
All Cause Proportion
0.10
0.12
0.26
0.52
11.2.6
A project conducted by the Australian Federal Office of Road Safety asked people many questions about
their cars. One question was the reason that a person chooses a given car, and that data is in table
#11.2.8 (?Car preferences,? 2013).
Table #11.2.8: Reason for Choosing a Car
Safety
84
Reliability
62
Cost
46
Performance
34
Comfort
47
Looks
27
Do the data show that the frequencies observed substantiate the claim that the reasons for
choosing a car are equally likely? Test at the 5% level.
STAT200 Introduction to Statistics
Assignment #3: Inferential Statistics Analysis and Writeup
Assignment #3: Inferential Statistics Analysis and Writeup Purpose:
The purpose of this assignment is to develop and carry out an inferential statistics analysis
plan and write up the findings.
There are two main parts to this assignment:
? Part A: Inferential Statistics Data Plan and Analysis
? Part B: Write up of Results
Step 1: Prepare Data Plan, Analyze Data, and Complete Part A of the Assignment #3 Template
? Task 1: Select Variables. Review the variables you used for assignments #1 and #2. Select
your qualitative socioeconomic variable as your grouping variable and the two expenditure
variables from the variables used in these previous assignments. Fill in Table 1: Variables
Selected for Analysis with name, description, and type of variable (i.e., qualitative or
quantitative).
? Task 2: Select and Run a One Sample Confidence Interval Analysis. For one expenditure
variable, select and run the appropriate method for estimating a parameter, based on a statistic
(i.e., confidence interval method). Complete Table 2: Confidence Interval Information and
Results, which follows the format outlined by Kozak and the course?s problem-solving
approach, including:
? Random variable stated in words
? Confidence interval method, including rationale and assumptions
? Method used for analyzing data (i.e., web applets, Excel, TI calculator, etc.).
? Results obtained
? Interpretation
? Task 3: Select Two Sample Hypothesis Test. Using the second expenditure variable (with the
socioeconomic variable as the grouping variable), select and run the appropriate method for
making decisions about two parameters relative to observed statistics (i.e., two sample
hypothesis test method). Complete Table 3: Two Sample Hypothesis Test Analysis, which
follows the format outlined by the course?s problem-solving approach, including:
? Hypotheses (null and alternative).
? Two sample hypothesis testing method, including rationale and assumptions
? Method used for analyzing data (i.e., web applets, Excel, TI calculator, etc.).
? Results obtained.
? Interpretation (i.e., Reject the null hypothesis OR Fail to reject null hypothesis)
NOTE: For this analysis, use all 30 data points for each variable (you may group the values by
another variable, but you still must use all 30 data points).
STAT200: Assignment #3 ? Inferential Statistics Analysis and Writeup ? Instructions
Page 1 of 4
Step 2: Write Up Results and Complete Part B of the Assignment #3 Template
For this 1 to 2 page section, refer to the inferential statistics data plan and computations done
for Part A of this assignment. Address the following areas:
? Introduction. Based on the scenario you submitted for the second assignment, provide a
brief description of scenario, including the variables that were used in this analysis. Include a
completed ?Table 1: Variables Selected for Analysis to show the variables you selected for
analysis.
? Data Set Description and Method Used for Analysis. Briefly describe the data set, using
information provided with data set and write up in Assignment #2. Also describe what
method(s) (i.e., free web applets, Excel, TI Calculator) you used to analyze the data.
? Results. In this section, you will report the results of your inferential statistics data analysis.
For the Confidence Interval Analysis, write one paragraph that includes:
o Statistical method used, including rationale and whether assumptions were met.
o Statistical Interpretation. The statistical interpretation is that the confidence interval has
a probability (1??, where ? is the complement of the confidence level) of containing the
population parameter.
o Real World Interpretation. Explain the results in everyday language. Recommend
reviewing the text and information from the classroom for examples on how to report
results in everyday language.
For the Two Sample Hypothesis Test Analysis, write one paragraph that includes:
o Hypotheses that were assessed. See table below for example format:
Example Format for Writing Null and Alternative Hypotheses, in Words
Null Hypothesis:
There is no significant difference in [insert variable name] between [insert group 1 name] and
[insert group 2 name] households.
Alternative Hypothesis:
? For two-tailed (?): There is a significant difference in [insert variable name] between
[insert group 1 name] and [insert group 2 name] households.
? For one-tailed (>): [Insert group 1 name] has statistically significantly higher [insert
variable name] than [insert group 2 name].
? For one-tailed (

Purchase answer to see full
attachment

This question was handled by a Studyhelp247 Statistics tutor and the student left a positive review. 19+ custom answers have been given to students for this question in October 2021 alone. To avoid plagiarism and maintain student privacy, we do not resell answers. Get your custom solution now. It is affordable.

Bram Eldoff, Founder, Studyhelp247.com

Consider this Statistics Assignment Done
Beat its deadline and stringent requirements.

[advanced_iframe securitykey=?your key? use_shortcode_attributes_only=?true? src=?https://core.studyhelp247.com/main-site-question-post/? id=?example4? height=?350? width=?450? show_part_of_iframe=?true? show_part_of_iframe_x=?-100? show_part_of_iframe_y=?75? show_part_of_iframe_width=?450? show_part_of_iframe_height=?350? show_part_of_iframe_new_window=?_top? show_part_of_iframe_new_url=?https://core.studyhelp247.com/new-question-posting/?]

>Approximate cost: $8 per page.
>Choose your own tutor.
>Get free revision, plagiarism reports, and a list of sources.
>Release the money only after delivery

How it Works

hw

Why you should post this Statistics question now.

Flawless Deliveries
Our tutors deliver fault free assignments after careful and detailed research. All instructions are followed to the letter.

100% Originality Guarantee
Every task delivered to students on our platform has 100% originality guarantee. Find plagiarism, get 100% money back.

Timely Deliveries
When you post a question here, we assure on-time delivery, or 100% money back. You cannot miss deadlines with us.

24/7 Customer Support
Our support agents are always online, ready to help you when using our platform. It only gets better.

Student-Friendly Prices
Getting quality help should not break your pocket. Find instant quality help for whatever budget you have.

Free Revisions
You can request your tutor for as many revisions as needed to ensure you are 100% satisfied with our services.

100% Privacy
Every action you take on our platform is anonymous. Once you receive your help, it is almost as if you weren?t here.

100% Refunds
If a tutor breaks any of our guarantees, you get 100% money back to ask questions in the future. No questions.

Here are other questions on different subjects that our tutors have handled with excellent results.

The first ones are MECO 6929 UOS Globalization of Film Sector of the PRC China Incremental Changes Essay and PHC 312 Saudi Electronic University Communication Plan for COVID 19 Vaccine Paper which required in-depth research and computations. The third and fourth ones are STAT 200 UMGC W7 Inferential Statistics Data Analysis Questionnaire and University of Maryland Global Campus Applied Company and Contract Law Paper, which called for experts to help with online quizzes. All these were answered for students who were looking for study assistants for homework help 2021

Reviews from Students; Verified by Trustalyze

Studyhelp247 Exceeded my expectations.

Rated 5 out of 5
3 years ago

I believe in studyhelp247 now. Here, I found the best tutor to assist me with a complex math task. It was seamless using the site.

Avatar for SdfDsf
SdfDsf

Response from Studyhelp247

Thank you for using our platform to find academic help. We are happy that you found what you were looking for.

By far, the best source of affordable custom writing solutions.

Rated 5 out of 5
3 years ago

I came to studyhelp247 after seeing an ad and they have been great. It is quite affordable owing to the fact that there are no service fee charges.

Avatar for Student01
Student01

Response from Studyhelp247

Thank you for the great review. We are committed to providing the best platform to foster student excellennce. 🙂

Very responsive support

Rated 5 out of 5
3 years ago

I have enjoyed using studyhelp247. The support was very responsive and I received quality work

Avatar for Alsalem
Alsalem

Response from Studyhelp247

Thank you.
Our support agents are always available to assist you with any issue.

Great work done for me by Anastacia.

Rated 5 out of 5
3 years ago

Thank you for the great work that you delivered. I will be back for more. 🙂

Avatar for Elsie
Elsie

Response from Studyhelp247

Thank you for using our site.