True/False. Please answer and explain all three. Thank you!! When testing H_0: m

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True/False. Please answer and explain all three. Thank you!!

When testing H_0: mu lessthanorequalto 1, H_0 is rejected if the observed Z score, i.e., the Z score of the sample mean X with respect to the sampling distribution of the mean under mu = 1, is less than the critical Z score, i.e., Z_crit. Answer: Explanation: 5. The following two statements are equivalent: a) the observed Z score of the mean falls in the region of rejection, and b) the p-value is greater than the level of significance a. Answer: Explanation: 6. For a two-tailed test, the region of rejection is on the left tail, and the region of non-rejection is on the right tail. Answer: Explanation:

Explanation / Answer

4.False, H0 is rejected means that the z observed is greater than z critical value, that is the test statistic z falls in the critical region.

5.False, if the observed z score falls in the critical region then the null hypothesis will be rejected and if the P value is greater than alpha then one fails to reject the null.

6.False, for a two tailed test the region of rejection is on the left and the right tail both and region of non rjection is in the middle.

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