Which hypothesis test has the greatest power? t-test with a 75% chance of rejecting H0 Chi-square with a 85% chance of rejecting H0 z-test with a 90% chance of failing to reject H0

What is the value of the test statistic for a test with a null hypothesis that mu = 100, Xbar = 110, the standard error = 20  and n = 49?

Determine the conclusion to the hypothesis test with a test statistic of -3.48 for two samples with known sigma given H0: uA-uB=0 vs Ha: uA-uB<0 and a 1% level of significance. Should you reject the null hypothesis or fail to reject the null hypothesis? Why?

IDENTIFY THE P VALUE AS WELL

What is tcrit for a paired, two tailed t-test, with 15 individuals examined pre and post and α=0.05?

What is the p-value of a right-tailed one-mean hypothesis test, with a test statistic of z0=1.6? (Do not round your answer; compute your answer using a value from the table below.)

What is the p-value of a right-tailed one-mean hypothesis test, with a test statistic of z0=2.05? (Do not round your answer; compute your answer using a value from the table below.)

A published report claims that 35% of college students have used an online dating site or app.  Believing this claimed value is too low, a researcher surveys a random sample of n = 420 college students about their experiences with online dating sites and apps.  A total of 166 of the surveyed students indicate that they have used online dating sites or apps.   Use this information to conduct a hypothesis test at a significance (or alpha) level of 0.05.   1.Based on the test statistic you computed to answer Question 11, along with what you see in Table B, what should the P-value be? 2. Based on the P-value you obtained and how it compares to the significance level of 0.05, what is your conclusion?  3. Look again at your answer to Question 13. If a smaller significance level had been chosen—like 0.01—would you have reached a different conclusion?   Please explain. 4. Again, look back at how you answered Question 13. If a larger significance level had been chosen—like 0.10—would you have…

Q2

What is the value of the test statistic for a test with a null hypothesis that mu = 82, Xbar = 85, the standard error = 5  and n = 100?