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A researcher is studying the coffee drinking habits of men and women.  She asks both men and...

  1. A researcher is studying the coffee drinking habits of men and women.  She asks both men and women how many ounces of coffee they drink daily.  She wants to find out if men and women drink a different amount of coffee.  The following is her output from running a two sample t-test of means assuming equal population variances.

t-Test: Two-Sample Assuming Equal Variances

Men

Women

Mean

11.47826087

14.08695652

Variance

37.16996047

29.6284585

Observations

23

23

Pooled Variance

33.39920949

Hypothesized Mean Difference

0

df

44

t Stat

-1.530749903

P(T<=t) one-tail

0.066494953

t Critical one-tail

1.680229977

P(T<=t) two-tail

0.132989906

t Critical two-tail

2.015367574

Is she able to say at the 0.1 level of significance that men and women drink different amounts of coffee?  Explain your answer. (5 points)

Math   Statistics-And-Probability   
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