solution:
right tail test
P-value = 0.029
= 0.05
P-value <
Reject the null hypothesis .
correct option b
Question 21 (1 Point You conduct a hypothesis test of How = 225 versus Hau >...
Question 10 You conduct a hypothesis test using a computer and get the following results: Test of p = 0.7 vs p -/-0.7 Z-value -1.57 p-value 0.1164 The significance level for this test is alpha=0.10, so you decide to fail to reject the null hypothesis. Which of the following statements is true? (Select all that apply) (A) If this test was one-tailed instead of two-tailed, you would still fail to reject the null. (B) If this test was one-tailed instead...
You are asked to conduct a simulation and run a hypothesis test at a significance level of 0.10. Based on your simulation, you find that the p-value is 0.051. What does this mean for your hypothesis test? 1. Since the p-value is greater than the significance level, you must fail to reject the null hypothesis. 2. Since the p-value is less than the significance level, you must fail to reject the null hypothesis. 3. Since the p-value is less than...
1. What are null hypothesis and alternative hypothesis? 2. Inastatisticaltest,wehavethechoiceofatwo-tailedtest,aleft- tailed test, or a right-tailed test. Which hypothesis is the determining factor for choosing the direction of the test? (In other words, how would you decide it) 3. Forthesamesampledataandnullhypothesis,howdoesthe P-value for a two-tailed test compare to that for a one-tailed test? 4. Using P-value method, how would you reject or fail to reject the null hypothesis? (what is the decision criteria?) How does level of significance matter to the hypothesis...
You are completing a hypothesis test. You know the following items: The test is a two-tailed test. The critical value for the test is + 2.763 The standardized test statistic is -2.768 Assume the population is normally distributed. Decide whether to reject or fail to reject the null hypothesis.
you are completing a hypothesis test. You know the following items: The test is a right-tailed test. The critical value for the test is 8.547 The standardized test statistic is 8.394. Decide whether to reject or fail to reject the null hypothesis.
1. Find the P-value for the indicated hypothesis test with the given standardized test statistic, z. Decide whether to reject Upper H 0 for the given level of significance alpha. Two-tailed test with test statistic z= -1.95 and alpha=0.04 P-value= ? (Round to four decimal places as needed.) Reject H0 or fail to reject? 2. Find the critical value(s) for a left-tailed z-test with alpha=0.01. Include a graph with your answer. The critical value(s) is(are) ___ (Round to two...
Multiple Choice: Question #1 A two tailed hypothesis test is being used to evaluate a treatment effect with ( a = .05). if the sample data produce a Z-score of ( z= -2.24), what is the correct decision? A. Reject the null hypothesis and conclude that the treatment has no effect B. Reject the null hypothesis and conclude that the treatment has an effect C. Fail to reject the null Hypothesis and conclude that the treatment has no effect D....
You conduct a hypothesis test for the population mean. After you calculate the t test statistic, you find that your p-value = 0.04. Using alpha (a) = 0.01 level of significance, what is your decision regarding the null hypothesis? (either reject Ho and accept Ha, or fail to reject Ho)
I spefically need to see how the test statistic and critical value is calculated. Test the claim that the proportion of men who own cats is significantly different than 80% at the 0.02 significance level. The null and alternative hypothesis would be: The test is: left-tailed right-tailed two-tailed Based on a sample of 55 people, 78% owned cats The test statistic is: (to 2 decimals) The positive critical value is: (to 2 decimals) Based on this we: Reject the null...
One tailed t-test O One tailed z-test Question 14 4 pts Which of the following statements most adequately summarizes the conclusion statement resulting from a p-value of 0.03? O We fail to reject the null hypothesis at the alpha level 0.1 We reject the null hypothesis at the alpha level of 0.05 We reject the null hypothesis at the alpha level of 0.01 O We fail to reject the null hypothesis at the alpha level 0.05 Question 15 4 pts