Question

In: Statistics and Probability

Suppose we have annual income for a sample of men and women provided below. Either using...

Suppose we have annual income for a sample of men and women provided below. Either using Excel or conducting this by hand, test to see whether the average annual income of men and women are the same. Conduct this at the 0.05 level. Make sure to test (also at the 0.05 level) that variances are the same. Show all your work or provide Excel output with a written explanation.

    Men

Women

99000

47000

32500

46500

14500

47200

78000

46900

22000

47300

15000

47250

92000

46750

11000

47100

37000

67000

Solutions

Expert Solution

ANSWER:

By using Excel

orchestra answered 1 year ago
Next > < Previous

Related Solutions

We have a sample of 9254 participants, 4557 men and 4697 women. The mean age of...
We have a sample of 9254 participants, 4557 men and 4697 women. The mean age of the sample is 34.33 years; men mean age is 34.12 (Variance= 663.063). The Variance in the women's group is 637.5625. Can you calculate women mean age? If so, is there a statistically significant difference between men and women mean age?  
We have a sample of 9254 participants, 4557 men and 4697 women. The mean age of...
We have a sample of 9254 participants, 4557 men and 4697 women. The mean age of the sample is 34.33 years; men mean age is 34.12 (Variance= 663.063). The Variance in the women's group is 637.5625. Can you calculate women mean age? If so, is there a statistically significant difference between men and women mean age?  
Annual Income SAT Scores Men Women Men Women $83,173 $78,980 600 960 $87,335 $73,791 1050 530...
Annual Income SAT Scores Men Women Men Women $83,173 $78,980 600 960 $87,335 $73,791 1050 530 $75,573 $62,553 820 710 $88,051 $75,179 730 680 $75,884 $58,778 530 790 $61,595 $110,787 680 1140 $68,993 $64,852 860 940 $83,185 $79,700 1050 420 $87,259 $55,352 910 820 $87,418 $63,386 590 880 $108,114 $78,803 960 890 $97,643 $92,505 1040 1300 $71,920 $94,666 840 1030 $71,516 $69,928 940 740 $79,982 $75,812 760 770 $84,823 $108,581 430 800 $80,256 $100,172 900 600 $69,839 $79,343 1090 1280...
Men and women in economic difference. ( Men and women in economics have different opinion) what...
Men and women in economic difference. ( Men and women in economics have different opinion) what it might mean for the future? What are the economic issues?
The body mass index​ (BMI) for a sample of men and a sample of women are...
The body mass index​ (BMI) for a sample of men and a sample of women are given below. Assume the samples are simple random samples obtained from populations with normal distributions. Men 30.930.9 22.322.3 29.929.9 30.930.9 27.227.2 31.731.7 26.526.5 20.220.2 26.626.6 30.530.5 Women nbspWomen 18.218.2 20.720.7 22.222.2 28.428.4 17.117.1 20.320.3 23.923.9 31.831.8 20.820.8 20.720.7 LOADING... Click the icon to view the table of​ Chi-Square critical values. a. Construct aa 9090​% confidence interval estimate of the standard deviation of BMIs for...
The body mass index for a sample of men and a sample of women are given...
The body mass index for a sample of men and a sample of women are given below. assume the samples are simple random samples obtained form populations with normal distributions. Men: 24.9, 28.4, 23.2, 32.8, 25.3, 32.9, 28.1, 28.6, 32.9, 26.4 Women: 19.6, 23.7, 18.2, 34.5, 19.3, 24.3, 18.8, 33.8, 18.7, 24.1 A. construct a 90% confidence interval estimate of the standard deviation of BMIs for men _ < σmen < _ B. construct a 99% confidence interval estimate of...
A sample of scores for men and women from an examination in Statistics 201 were: Men...
A sample of scores for men and women from an examination in Statistics 201 were: Men 97 99 74 73 92 63 59 95 Women 60 83 72 49 45 53 61 66 61 95 58 Given that the null hypothesis and the alternative hypothesis are:   H0: μm - μw = 3   H1: μm - μw ≠ 3 and using a 0.05 significance level conduct a t-test about a difference in population means: a) What is the correct decision rule?...
A sample of scores for men and women from an examination in Statistics 201 were: Men...
A sample of scores for men and women from an examination in Statistics 201 were: Men 94 97 66 54 80 59 83 45 Women 57 56 48 98 84 55 70 94 Given that the null hypothesis and the alternative hypothesis are:   H0: μm - μw ≤ -4   H1: μm - μw > -4 and using a 0.05 significance level conduct a t-test about a difference in population means: a) What is the correct decision rule? Reject H0 in...
Below you see how many men and women studied sociology and political science. Men Women Political...
Below you see how many men and women studied sociology and political science. Men Women Political science 138 163 Sociology 74 106 Give the p-value associated with the test statistic that indicates whether the proportion of female students in political science is smaller than the proportion of female students in sociology. Please round all values to 5 decimal points.
A study was conducted on the number of hours slept by men and women. A sample...
A study was conducted on the number of hours slept by men and women. A sample of 18 men slept an average of 6.1 hours a day with a sample standard deviation of 2.1 hours, whereas a sample of 21 women slept an average of 6.4 hours a day with a sample standard deviation of 1.7 hours. Use a 0.05 significance level to test the claim that the average number of hours that there is a difference between the average...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT