Read the z statistic from the normal distribution table and circle the correct answer. A one-tailed...
To identify the correct Z(critical), it is important to determine whether the hypothesis test is one-tailed or two-tailed. The decision between a one- and two-tailed hypothesis is based on the researcher's expectations about the population from which the sample was selected. Many people believe that millennials are having more sex than people during the sexual revolution. You wonder whether the cohort currently in their mid-20s have had more sexual partners than older generations. Assume that the the average number of...
For a one-tailed test with a 0.05 level of significance, the critical z-statistic is 1.645, but the critical t- statistic is 1.96.
Provide an appropriate response. Find the critical value and rejection region for the type of z- test with level of significance a. Right- tailed test, a = 0.01 O zo 1.96; ; z > 1.96 2.33; z> 2.33 zo zo 2.575; z> 2.575 zo 1.645; z> 1.645 QUESTIO 8 points Save Answer Provide an appropriate response. Suppose you want to test the claim that 3.5. Given a sample size of n 40 and a level of significance of a 0.05...
Provide an appropriate response. Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to reject H o for the level of significance a. Right-tailed test z= 0.52 a= 0.05 0.0195; Reject Ho 0.3015; Reject Ho O 0.3015; Fail to reject Ho O 0.6030; Fail to reject Ho QUESTIO 8 points Save Answer Provide an appropriate response. Find the critical value and rejection region for the type of z- test with level of significance a....
(10 Points) A 2-tailed z-test was performed. The test statistic was- (5) What is the p-value for this test? 1.4, a. (5) If the significance level was 10%, would the null hypothesis be accepted or rejected? b. (10 Points) A 2-tailed z-test was performed. The test statistic was- (5) What is the p-value for this test? 1.4, a. (5) If the significance level was 10%, would the null hypothesis be accepted or rejected? b.
Read the t statistic from the table of t distributions and circle the correct answer. A one-tailed test (upper tail), a sample size of 18 at a .05 level of significance t = a. 1.740 b. 1.734 c. 2.12 d. -1.740
For the given data Question in Red ed2 mean = 96.42, st dev = 8.2586, n = 10 Assuming alpha = 0.05 (1) Null and Alternative Hypotheses The following null and alternative hypotheses need to be tested: Ho: 4 = 100 Ha: 4 < 100 This corresponds to a left-tailed test, for which a t-test for one mean, with unknown population standard deviation will be used. (2) Rejection Region Based on the information provided the significance level is a =...
For the given data Question in Red ed2 mean = 96.42, st dev = 8.2586, n = 10 Assuming alpha = 0.05 (1) Null and Alternative Hypotheses The following null and alternative hypotheses need to be tested: Ho: 4 = 100 Ha: 4 < 100 This corresponds to a left-tailed test, for which a t-test for one mean, with unknown population standard deviation will be used. (2) Rejection Region Based on the information provided the significance level is a =...
For a test of a mean, which of the following is correct? Top of Form H0 is rejected when the calculated p-value is less than the specified level of significance For a left-tailed test, the null hypothesis H0 will be rejected when the test statistic exceeds the critical value . The test statistic value is based on the chosen level of significance. If H0: μ= 5 and H1: μ ≠ 5, then the test can either be a right-tailed test...
In order to test the following hypotheses at an α level of significance H0: μ ≤ 800 Ha: μ > 800 the null hypothesis will be rejected if a) the test statistic z ≥ zα. b) the test statistic z < zα. c) the test statistic z < −zα. d) the test statistic z = α.