Consider the population consisting of {4,5,9}. If samples of size n = 2 are randomly selected from the population with replacement compute the mean of the sample ranges   Multiple choice answers 4.2 3.4 2.8 5 2.2

Assume that you want to test the claim that the paired sample data (matched pairs) come from a population for which the mean difference is ud = 0. Compute the value of the t test statistic. Round the test statistic to four decimal places.. 28 31 20 25 28 27 33 35 8) 8) 26 27 26 25 29 32 33 34

The average American gets a haircut every 43 days. Is the average different for college students? The data below shows the results of a survey of 11 college students asking them how many days elapse between haircuts. Assume that the distribution of the population is normal. 32, 46, 49, 45, 50, 49, 43, 45, 38, 46, 42 What can be concluded at the the a =0.01 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Họ: ? Select an answer v H. Select an answer Y C. The test statistic ? (please show your answer to 3 decimal places.) d. The p-value - (Please show your answer to 3 decimal places.) e. The p-value is 2 f. Based on this, we should Select an answer the null hypothesis, g. Thus, the final conclusion is that, The data suggest the populaton mean is significantly different from 43 ata = 0.01, so there is fficient evidence tr conrlide that -he nonulation.

I AM RESUBMITTING THIS QUESTION. I NEED THE FIRST THREE QUESTIONS ANSWERED.    The average wait time to get seated at a popular restaurant in the city on a Friday night is 8 minutes.  Is the mean wait time less for men who wear a tie? Wait times for 12 randomly selected men who were wearing a tie are shown below. Assume that the distribution of the population is normal. 8, 7, 7, 5, 5, 5, 8, 9, 7, 8, 5, 6 What can be concluded at the the αα = 0.05 level of significance level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion  The null and alternative hypotheses would be:       H0:H0:  ? p μ  Select an answer < ≠ > =         H1:H1:  ? μ p  Select an answer < > = ≠     The test statistic ? t z  =  (please show your answer to 3 decimal places.) The p-value =  (Please show your answer to 4 decimal places.) The p-value is ? > ≤  αα Based on this, we should Select an answer accept fail to reject…