do from 9 to 13 only c. Type I error rate d. a e. Whether Ho should be rejected
ID: 3258235 • Letter: D
Question
do from 9 to 13 only
c. Type I error rate d. a e. Whether Ho should be rejected 9. The hypotheses in a z-test for the population mean are Ho u S 10, Ha u -10. The sample mean is ie 10. What is the pvalue of this test? a. 0.5 c. 0.2 d. 0.9 e. 1 10. Assume that the true distribution of the test statistic is normal with mean w 0. Given a sample of size n, we would like to test Ho H 0, Ha pu 0. If we repeat the test with 100 independent s at significance level o 0.05, in how many tests do we expect to reject the null hypothesis incorrectly? a. 5 b. 50 C. 95 d. All of them e. Cannot be determined 11. Which of the following is correct about a hypothesis test? a. For small sample sizes we will always make an incorrect decision b. a is the probability of incorrect decision c. The decision in a hypothesis test is always correct d. If the null hypothesis is true, then the alternative hypothesis must be wrong e. pvalue is the probability of null hypothesis being true For questions 12-13 refer to the specification of the multiple linear regression model: 12. Which of the following is true about E? a. it is a random variable b, it is a parameterExplanation / Answer
Q-9-Part-a as test statistic Z=0
Q-10 part-a
Q-11-part-b
Q-12-part-a
Q-13-part-b
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.