Another administrator is not convenced the data is correct and wants to run the test again with new data. Using the new
Posted: Wed May 11, 2022 8:45 am
Another administrator is not convenced the data is correct and
wants to run the test again with new data. Using the new majors and
hours earned data below, are the mean hours earned similar
regardless of majors? Use a 0.05 level of significance.
MAJOR
HOURS EARNED
Nursing
32, 43, 84, 13, 66, 58, 75,
Business Administration
73, 31, 34, 54,
46
General Studies
64, 25, 75, 68, 78, 73
7. What is the null hypothesis?
All the mean hours earned are the same for the majors
All the mean hours earned are not the same for the majors.
8. What is the alternative hypothesis?
All the mean hours earned are the same for the majors
All the mean hours earned are not the same for the majors.
9. What is test statistic? Please answer with two decimal
places.
10. What is the p-value? Please answer with three decimal
places.
11. What is your conclusion based on the p-value and the level
of significance?
Fail to reject the null hypothesis
Reject the null hypothesis
12. What is the proper conclusion?
At the 0.05 level of significance, the mean hours earned not
similar regardless of majors.
At the 0.05 level of significance, the mean hours earned are
similar regardless of majors.
Traditionally the mean body temperature is believed to be 98.6
F. Many people believes that the mean temperature may be different
among different groups of people. At the 0.05 level of
significance, are the mean temperatures different among the three
groups?
Here is the data:
Children: 97.2, 97.6, 97.9, 97.9, 98.2, 98.2, 98.2
Adults: 96.4, 96.7, 97.1, 97.3, 98.3, 98.7, 99.2, 99.9
Seniors: 98.5, 99.1, 99.2, 99.8, 99.9, 100.1, 100.8
13. What is the null hypothesis?
All the mean temperatures are not the same for the three
groups.
All the mean temperatures are the same for the three groups.
14. What is the alternative hypothesis?
All the mean temperatures are not the same for the three
groups.
All the mean temperatures are the same for the three groups.
15. What is test statistic? Please answer with two decimal
places
16. What is the p-value? Please answer with three decimal
places
17. What is your conclusion based on the p-value and the level
of significance?
Fail to reject the null hypothesis
Reject the null hypothesis
18. What is the proper conclusion?
At the 0.05 level of significance, the mean temperatures are the
same for the three groups.
At the 0.05 level of significance, the mean temperatures are not
the same for the three groups.
wants to run the test again with new data. Using the new majors and
hours earned data below, are the mean hours earned similar
regardless of majors? Use a 0.05 level of significance.
MAJOR
HOURS EARNED
Nursing
32, 43, 84, 13, 66, 58, 75,
Business Administration
73, 31, 34, 54,
46
General Studies
64, 25, 75, 68, 78, 73
7. What is the null hypothesis?
All the mean hours earned are the same for the majors
All the mean hours earned are not the same for the majors.
8. What is the alternative hypothesis?
All the mean hours earned are the same for the majors
All the mean hours earned are not the same for the majors.
9. What is test statistic? Please answer with two decimal
places.
10. What is the p-value? Please answer with three decimal
places.
11. What is your conclusion based on the p-value and the level
of significance?
Fail to reject the null hypothesis
Reject the null hypothesis
12. What is the proper conclusion?
At the 0.05 level of significance, the mean hours earned not
similar regardless of majors.
At the 0.05 level of significance, the mean hours earned are
similar regardless of majors.
Traditionally the mean body temperature is believed to be 98.6
F. Many people believes that the mean temperature may be different
among different groups of people. At the 0.05 level of
significance, are the mean temperatures different among the three
groups?
Here is the data:
Children: 97.2, 97.6, 97.9, 97.9, 98.2, 98.2, 98.2
Adults: 96.4, 96.7, 97.1, 97.3, 98.3, 98.7, 99.2, 99.9
Seniors: 98.5, 99.1, 99.2, 99.8, 99.9, 100.1, 100.8
13. What is the null hypothesis?
All the mean temperatures are not the same for the three
groups.
All the mean temperatures are the same for the three groups.
14. What is the alternative hypothesis?
All the mean temperatures are not the same for the three
groups.
All the mean temperatures are the same for the three groups.
15. What is test statistic? Please answer with two decimal
places
16. What is the p-value? Please answer with three decimal
places
17. What is your conclusion based on the p-value and the level
of significance?
Fail to reject the null hypothesis
Reject the null hypothesis
18. What is the proper conclusion?
At the 0.05 level of significance, the mean temperatures are the
same for the three groups.
At the 0.05 level of significance, the mean temperatures are not
the same for the three groups.