The table below gives results from a study interested in knowing the number of words spoken in a day by young men and young women at college. Use a 0.01 significance level to test the claim that the mean number of words spoken in a day by men are less than that for women.
8.- The table below gives results from a study interested in knowing the number of words spoken in a day by young men and young women at college. Use a 0.01 significance level to test the claim that the mean number of words spoken in a day by men are less than that for women.
Gender n Mean Standard Deviation
Men n1 = 186 1 = 15,668.5 s1 = 8,632.5
Women n2 = 210 2 = 16,215.0 s2 = 7301.2
a) Define the following elements to test the proposed hypotheses.
Answer: Ho: Ha: CV = -2.337 RR = Test statistics = P-value:0.238376
Conclusion: Keep Ho Reject Ho
b) Construct a 98% confidence interval for the difference between the two population means.
Answer:
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