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give typeed answer only A null hypothesis is that the mean height of men and wom

ID: 3226122 • Letter: G

Question

give typeed answer only

A null hypothesis is that the mean height of men and women are the same. The alternative hypothesis is that men have a longer mean height than women. Which of the following is the correct way to state the null hypothesis? a. H_0: p = 0.50 b. H_0: x_1 - x_2 = 0 c. H_0: p_1 - p_2 = 0 d. H_0: mu_1 - mu_2 = 0 Refer to Q11. A statistical test is performed for assessing if men have a longer mean height than women. The p-value is 0.225. Which of the following is the most appropriate way to state the conclusion? a. The mean height of the populations of men and women are identical. b. There is not enough evidence to say that that the populations of men and women have different mean height. c. Men have a greater mean height than women. d. The probability is 0.225 that men and women have the same mean height.

Explanation / Answer

11. Answer is d as it gives the mean height of men and women and says that it should be same.

12. Since the p value is much more than 0.05, that means we fail to reject the null hypothesis that the means of heights are equal. Thus the answer is C