1. Which of the following statements about the p-value istrue? (a). If the p-val

Question

1. Which of the following statements about the p-value istrue? (a). If the p-value is 0.14, then the null hypothesis isrejected at the 0.01 significance level (b). The p-value is calculated assuming that the nullhypothesis is true. (c). In a left-tailed test, the p-value is calculated bydoubling the area to the left of the test statistic. (d). The smaller the p-value, the weaker the evidence againstthe null hypothesis.
2. Suppose you are studying different attributes of several breedsof dogs. You are interested in estimating the mean shoulder heightof Labrador retrievers. Which is the target parameter? (a) x-bar (b) (c). p (d). (e). None ofthe above. 1. Which of the following statements about the p-value istrue? (a). If the p-value is 0.14, then the null hypothesis isrejected at the 0.01 significance level (b). The p-value is calculated assuming that the nullhypothesis is true. (c). In a left-tailed test, the p-value is calculated bydoubling the area to the left of the test statistic. (d). The smaller the p-value, the weaker the evidence againstthe null hypothesis.
2. Suppose you are studying different attributes of several breedsof dogs. You are interested in estimating the mean shoulder heightof Labrador retrievers. Which is the target parameter? (a) x-bar (b) (c). p (d). (e). None ofthe above.

Explanation / Answer

1. The correct answer is b; the p-value is the probability ofthe value obtained, or one more extreme, being observed giventhe null hypothesis is true. 2. the correct answer is also b; the parameter for mean is thegreek letter

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