The accompanying data provides the results of a survey of 27 employees in a tax division of a Fortune 100 company. a. Test the null hypothesis that the average number of years of service is the same for males and females. Assume that the population variances are unequal. b. Test the null hypothesis that the average years of undergraduate study is the same for males and females. Assume that the population variances are unequal Click the icon to view the survey data. a. Is there sufficient evidence at the 0.01 level of significance that the average number of years of service is the same for males and females? Determine the null hypothesis, H. and the alternative hypothesis. H Let females be population 1 and males be population 2 Ho H1 H2 = 0 HH-H # 0 (Type integers or decimals. Do not round.) Compute the test statistic (Round to two decimal places as needed.) Survey data Gender Years of Service Years Undergraduate Study Gender Years of Service Years Undergraduate Study Female 18 4 Male 6 4 Female 7 Male 15 4 Female 8 4 Male 28 4 Female 21 0 Male 10 4 Female 5 4 Male 23 1 Female 9 4 Male 24 4 Female 8 2 Male 20 2 Female 9 4 Male 7 4 Female 7 1 Male 19 4 Female 10 2 Male 21 Female 18 4 Male 31 Female 12 0 Male 25 Female 11 4 Male 28 4 4 4 2 Female 4 2 Print Done X
The accompanying data provides the results of a survey of 27 employees in a tax division of a Fortune 100 company. a. Test the null hypothesis that the average number of years of service is the same for males and females. Assume that the population variances are unequal. b. Test the null hypothesis that the average years of undergraduate study is the same for males and females. Assume that the population variances are unequal Click the icon to view the survey data. a. Is there sufficient evidence at the 0.01 level of significance that the average number of years of service is the same for males and females? Determine the null hypothesis, H. and the alternative hypothesis. H Let females be population 1 and males be population 2 Ho H1 H2 = 0 HH-H # 0 (Type integers or decimals. Do not round.) Compute the test statistic (Round to two decimal places as needed.) Survey data Gender Years of Service Years Undergraduate Study Gender Years of Service Years Undergraduate Study Female 18 4 Male 6 4 Female 7 Male 15 4 Female 8 4 Male 28 4 Female 21 0 Male 10 4 Female 5 4 Male 23 1 Female 9 4 Male 24 4 Female 8 2 Male 20 2 Female 9 4 Male 7 4 Female 7 1 Male 19 4 Female 10 2 Male 21 Female 18 4 Male 31 Female 12 0 Male 25 Female 11 4 Male 28 4 4 4 2 Female 4 2 Print Done X
Essentials of Business Analytics (MindTap Course List)
2nd Edition
ISBN:9781305627734
Author:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson
Publisher:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson
Chapter6: Statistical Inference
Section: Chapter Questions
Problem 6P: In this chapter we showed how a simple random sample of 30 EAI employees can be used to develop...
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Transcribed Image Text:The accompanying data provides the results of a survey of 27 employees in a tax division of a Fortune 100 company.
a. Test the null hypothesis that the average number of years of service is the same for males and females. Assume that the population variances are unequal.
b. Test the null hypothesis that the average years of undergraduate study is the same for males and females. Assume that the population variances are unequal
Click the icon to view the survey data.
a. Is there sufficient evidence at the 0.01 level of significance that the average number of years of service is the same for males and females?
Determine the null hypothesis, H. and the alternative hypothesis. H Let females be population 1 and males be population 2
Ho H1 H2
=
0
HH-H
#
0
(Type integers or decimals. Do not round.)
Compute the test statistic
(Round to two decimal places as needed.)
Survey data
Gender
Years of Service
Years Undergraduate
Study
Gender
Years of Service
Years Undergraduate
Study
Female
18
4
Male
6
4
Female
7
Male
15
4
Female
8
4
Male
28
4
Female
21
0
Male
10
4
Female
5
4
Male
23
1
Female
9
4
Male
24
4
Female
8
2
Male
20
2
Female
9
4
Male
7
4
Female
7
1
Male
19
4
Female
10
2
Male
21
Female
18
4
Male
31
Female
12
0
Male
25
Female
11
4
Male
28
4 4 4 2
Female
4
2
Print
Done
X
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