Researchers equipped random samples of 46 male and 58 female students from a large university with...

Researchers equipped random samples of 46 male and 58 female students from a large university with a small device that secretly records sound for a random 30 seconds during each 12.5-minute period over two days. Then they counted the number of words spoken by each subject during each recording period and, from this, estimated how many words per day each subject speaks. The female estimates had a mean of 16,177 words per day with a standard deviation of 7520 words per day. For the male estimates, the mean was 16,569 and the standard deviation was 9108. Do these data provide convincing evidence of a difference in the average number of words spoken in a day by male and female students at this university?

a) What is the critical value for this test?

b) What is the p-value for this test?

c) What is the test statistic for this test?

d) What is the decision for this test?

Solutions

Expert Solution

a) What is the critical value for this test? 1.988

b) What is the p-value for this test? 0.8146

c) What is the test statistic for this test? 0.235

d) What is the decision for this test?
The data does not provide convincing evidence of a difference in the average number of words spoken in a day by male and female students at this university

orchestra answered 9 months ago

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