QUESTION 6 Which of the following P-values will lead us to reject the null hypothesis at the .05 level? O.10 O .025 O .075 O.15 O Any P-value greater than .05

Explain how the power of a hypothesis test is influenced by each of the following. Assume that all other actors are held constant.  a. Increasing the alpha level from .01 to .05  b. Changing from a one-tailed test to a two-tailed test

A null and alternative hypothesis are given. De Ho: o 2 7.4 O < 7.4 What type of test is being conducted in this pr O A. Two-tailed test O B. Left-tailed test O C. Right-tailed test

c. What is the P-value? P-value = 0.0154 (Round to four decimal places as needed.) d. What is the null hypothesis, and what do you conclude about it? Identify the null hypothesis. A. Ho: p=0.12 O B. Ho: p 0.12 C. Ho: p>0.12 O D. Ho: p<0.12 Decide whether to reject the null hypothesis. Choose the correct answer bylow. O A. Reject the null hypothesis because the P-value is greater than the significance level, a. O B. Reject the null hypothesis because the P-value is less than or equal to the significance level, a. C. Fail to reject the null hypothesis because the P-value is greater than the significance level, a. O D. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a. e. What is the final conclusion? O A. There is not sufficient evidence to warrant rejection of the claim that less than 12% of treated subjects experienced headaches. B. There is sufficient evidence to support the claim that less than 12% of treated subjects…

In a one-tail hypothesis test where you reject Ho only in the lower tail, what is the p-value if ZSTAT =-116? Click here to view page 1 of the Normal table, Click here to view page 2 of the Normal table. The p-value is (Round to four decimal places as needed.)

This Question: 4 pts 1 of 9 (0 complete) This Quiz: 45 pts possible Assume a significance level of a = 0.05 and use the given information to complete parts (a) and (b) below. Original claim: More than 54% of adults would erase all of their personal information online if they could. The hypothesis test results in a P-value of 0.1661. a. State a conclusion about the null hypothesis. (Reject H, or fail to reject Ho.) Choose the correct answer below. A. Reject Ho because the P-value is greater than a. B. Reject Ho because the P-value is less than or equal to a. C. Fail to reject H, because the P-value is less than or equal to a. O D. Fail to reject H, because the P-value is greater than a. b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? A. There is sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is…

Which of the following statements most adequately summarizes the conclusion statement resulting from a p-value of 0.04 ? Group of answer choices We reject the null hypothesis at the alpha level of 0.05. But we cannot differentiate between the null hypothesis is truly wrong and we are making a type I error We reject the null hypothesis at the alpha level of 0.05. But we cannot differentiate between the null hypothesis is truly wrong and we are making a type II error We fail to reject the null hypothesis at the alpha level of 0.05 We can conclude that the null hypothesis is truly wrong

1.12  To collect data in an introductory statistics course, I gave the students a questionnaire. One question asked whether the student was a vegetarian. Of 25 students, 0 answered study of 100 women suffering from excessive menstrual bleeding considers yes. They were not a random sample, but use these data to illustrate inference for a proportion. Let π denote the population proportion who would say yes. Consider H0: π = 0.50 and Ha: π ̸= 0.50. What happens when you conduct the Wald test, which uses the estimated standard error in the z test statistic? Find the 95% Wald confidence interval (1.3) for π. Is it believable? Conduct the score test, which uses the null standard error in the z test statistic. Report and interpret the P -value. Verify that the 95% score confidence interval equals (0.0, 0.133). (This is similar to the interval (0.0, 0.137) obtained with a small-sample method of Section 1.4.3, inverting the binomial test with the mid P -value.)

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In a one-tail hypothesis test where you reject Ho only in the upper tail, what is the p-value if ZSTAT = +2.40? Click here to view page 1 of the Normal table. Click here to view page 2 of the Normal table. The p-value is (Round to four decimal places as needed.)