Statistics Exam Solution: Comprehensive Answers Included

This document presents solutions to a statistics exam, covering a range of statistical concepts. The solutions include answers to questions on topics such as hypothesis testing, chi-square tests, correlation analysis, and descriptive statistics. The exam also covers the use of simple random sampling, systematic sampling, and the interpretation of statistical results. The solutions provide detailed explanations and answers to multiple-choice questions, ensuring a comprehensive understanding of the concepts. The document also includes specific answers to questions related to survey design, data analysis, and the interpretation of statistical tests. This resource is designed to help students prepare for their statistics exams and improve their understanding of the subject matter. It covers various aspects of statistical analysis, from basic concepts to advanced applications, making it a valuable tool for students studying statistics.

STATISTICS ONLINE
EXAM

TABLE OF CONTENTS
ANSWERS......................................................................................................................................3

ANSWERS
1
Factors 1 2 3 4 5
Food quality
Food price
Location of
restaurant
Strong food
safety track
record
Positive reviews
on social media
Interior design of
a restaurant
Recommendation
from friends or
family
Child- friendly
Ability to meet
dietary
restrictions
Sustainability
sources food
2
How often do you eat in out restaurant?
 Often
 Very often
 Never
 Rare

 Sometimes
3. no improvement
4. I am satisfied with the shipping speed and cost.
 Strongly agreed
 Agreed
 Neutral
 Disagreed
 Strongly disagreed
5. Inferential statistics
6. Descriptive statistics
7. Systematic sampling
8. Simple random
9. None of the answers provided is correct
10. Purposive
11. Snowball
12. Simple random
13. All the student in the library
14. George conducted a census of all students present in the library
15. Null hypothesis is false but accepted
16. 18.307
17. 32.000
18. If the chi- square value calculated for this test is more than 3.841 then null hypothesis should
be accepted.
19. If the chi- square value calculated for this test is more than 36.119 then null hypothesis
should be accepted.
20. the six soft drinks are not equally preferred by consumers
21. 38
22. none of the answer is correct
23. 0.417
24. There is a significant relationship between the gender and the subscriber of gift selected.
25. 60

26. 9.210
27. none of the answer is correct
28. There is a significant relationship between the gender and the subscriber of gift selected.
29. 105
30. 9.236
Q-31
2.667
Q-32
0.491
Q-33
4
Q-34
3
Q-35
Positive correlation- if spearman coefficient calculated for test is less than 0.414 then null
hypothesis should be rejected.
Q-36
Positive correlation- if spearman coefficient calculated for test is less than 0.929 then null
hypothesis should be accepted.
Q-37
Comfort depends on service

Q-38
0.587
Q-39
0.766
Q-40
I would include in the data analysis the responses from all 6 employees
Q-41
Employee 4
Q-42
Employee 6
Q-43
I would include in the data analysis the responses from all 10 employees
Q- 44
Possibility of long term holidays
Q-45
Additional health insurance