Question

A recent study focused on the number of times men and women who live alone buy...

A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. Assume that the distributions follow the normal probability distribution and the population standard deviations are equal. The information is summarized below.

Statistic Men Women
Sample mean 25.24 21.73
Sample standard deviation 5.53 4.54
Sample size 34 37

At the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in a month?

  1. State the decision rule for 0.01 significance level: H0: μMen= μWomen   H1: μMenμWomen. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)

  1. Compute the value of the test statistic. (Round your answer to 3 decimal places.)

  1. What is your decision regarding the null hypothesis?

  1. What is the p-value? (Round your answer to 3 decimal places.)

A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. Assume that the distributions follow the normal probability distribution and the population standard deviations are equal. The information is summarized below.

Statistic Men Women
Sample mean 25.24 21.73
Sample standard deviation 5.53 4.54
Sample size 34 37

At the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in a month?

  1. State the decision rule for 0.01 significance level: H0: μMen= μWomen   H1: μMenμWomen. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)

  1. Compute the value of the test statistic. (Round your answer to 3 decimal places.)

  1. What is your decision regarding the null hypothesis?

  1. What is the p-value? (Round your answer to 3 decimal places.)

A recent study focused on the number of times men and women who live alone buy take-out dinner in a month. Assume that the distributions follow the normal probability distribution and the population standard deviations are equal. The information is summarized below.

Statistic Men Women
Sample mean 25.24 21.73
Sample standard deviation 5.53 4.54
Sample size 34 37

At the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in a month?

  1. State the decision rule for 0.01 significance level: H0: μMen= μWomen   H1: μMenμWomen. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)

  1. Compute the value of the test statistic. (Round your answer to 3 decimal places.)

  1. What is your decision regarding the null hypothesis?

  1. What is the p-value? (Round your answer to 3 decimal places.)

Homework Answers

Answer #1
  1. State the decision rule for 0.01 significance level: H0: μMen= μWomen   H1: μMenμWomen. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)

2.649

  1. Compute the value of the test statistic. (Round your answer to 3 decimal places.)

2.933

  1. What is your decision regarding the null hypothesis?

Reject the null hypothesis.

  1. What is the p-value? (Round your answer to 3 decimal places.)

​​​​​​​0.005

The output is:

Men Women
25.24 21.73 mean
5.53 4.54 std. dev.
34 37 n
69 df
3.51000 difference (Men - Women)
25.37953 pooled variance
5.03781 pooled std. dev.
1.19682 standard error of difference
2.649 critical t
2.933 t
0.005 p-value (two-tailed)
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