6. List below are the numbers of words spoken in a day by each member of...

6. List below are the numbers of words spoken in a day by each member of six different couples.

Use a 0.05 significance level to test the claim that among couples, males speak more words in a

day than females. Assume that the population differences is normally distributed.

Male

5638

21,319

17,572

26,429

46,978

25,835

Female

5198

11,661

19,624

13,397

31,553

18,667

7. A sociologist wanted to estimate the difference in the amount of daily leisure time (in hours) of adults who do not have children under the age of 18 years and adults who have children under the age of 18 years. A random sample of 40 adults with no children under the age of 18 years results in a mean daily leisure time of 5.62 hours, with a standard deviation of 2.43 hours. A random sample of 40 adults with children under the age of 18 years results in a mean daily leisure time of 4.10 hours, with a standard deviation of 1.82 hours. Construct a 95% confidence interval for the mean difference in leisure time between adults with no children and adults with children.

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milcah answered 3 hours ago

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