The questions are in the photos below:

Question 8 Not yet a nswe red Marked out of 1.00 'l' Flag question We have created a 95% confidence interval for a population mean, u, with the result (10, 15). What decision will we make if we test H0: u = 9 vs Ha: u at 9 at Ct = 0.05? Select one: 0 a. Accept Ho O b. Reject Ha O c. We cannot tell what our decision will be with the information given. 0 d. Do not reject HO 0 e. Reject Ho Question 16 Not yet answered Marked out of 1.00 F Flag question A 99% confidence interval for the mean length of time (in minutes) taken to travel from A to B is (30, 40). What decision will we make if we test H0: u = 31 against Ha: u at 31 at c = 0.01 Select one: Q a. Do not reject HO O b. Reject Ha O c. Reject HO 0 d. We cannot tell what our decision will be with the information given. 0 e. Accept Ha Question 18 Not yet answered Marked out of 1.00 t7 Flag question There are two types of errors in hypothesis testing: rejecting a true null hypothesis, and failing to reject a false null hypothesis. Select one: 0 True 0 False Question 5 A newspaper recently ran an article about a study of differences in perceptions of Not yet sexual harassment. The article claimed that the study showed that women answered perceived the problem to be much more prevalent than men perceive it to be. Marked out of If the true population proportion of men who think that sexual harassment is a major 1.00 problem in the workplace is pm and the true population proportion of women who Flag think that sexual harassment is a major problem in the workplace is Pw, what null question and alternative hypotheses should be used to investigate the claim that a higher proportion of women than men think that sexual harassment is a major problem in the workplace? Select one: O a. Ho : Pw - Pm > O, Ha : Pw - Pm = 0 O b. Ho : Pw - Pm = 0, Ha : Pw - Pm > 0 O c. Ho : Pw - Pm > O, Ha : Pw - Pm SO O d. Ho : Pw - Pm = 0, Ha : Pw - Pm 20Question 7 Not yet answered Marked out of 1.00 F Flag question Given the null and alternative hypotheses below indicate the symbol for a sample statistic we might record for each simulated sample to create a randomisation distribution. Ho:p=0,Ha:p#'0 Question 17 Not yet answered Marked out of 1.00 \\V Flag question A study at Auckland's Green Lane Hospital looked at the effect of length of fast on stomach pH levels. Patients operated on in the morning have shorter fasts than those operated on in the afternoon. A test is conducted to determine whether there is any evidence of a different mean stomach pH level for afternoon patients compared with morning patients. Let M be the average pH level for the afternoon patients and M be the average pH level for the morning patients. The following pair of hypotheses is used for the test: Ho: uA uM=0vs.Ha:uA-|.1M:to. From sample data, a P-value of 0.042 is calculated for the test. Using 0. (alpha) : 0.05, what are the decision and conclusion from the test? Select one: Q a. Do not reject H0; conclude that there is insufficient evidence at o = 0.05 that mean stomach pH is different in morning and afternoon patients. 0 b. Reject Ho; conclude that there is sufficient evidence at d = 0.05 that mean stomach pH is different in morning and afternoon patients. 0 c. Reject Ha; conclude that there is sufficient evidence at d = 0.05 that mean stomach pH is the same in morning and afternoon patients. 0 d. Do not reject Ha; conclude that there is insufficient evidence at o = 0.05 that mean stomach pH is the same in morning and afternoon patients. Question 14 Not yet answered Marked out of 1.00 1.7 Flag question Suppose the null hypothesis is H0: u = 16, and the alternative is Ha: u > 16. The hypothesis test returns a pvalue = 0.34. What do you conclude from the test, using significance level (1 (alpha) = 0.01? Select one: Q a. There is sufficient evidence at significance level d that the population mean is greater than 16. O b. There is evidence that the population mean is 16. O c. There is no evidence that the population mean is 16. Q d. There is insufficient evidence at significance level a that the population mean is greater than 16. Question 15 Not yet answered Marked out of 1.00 1&7 Flag question New Zealand scientists are interested in whether the average weight of Pekapeka tou-roa (long-tailed bats) found in a mainland island conservation area is different from 109. Researchers test this using the following pair of hypotheses: Ho: 11 = 10 vs. Ha: u at 10. A random sample of 32 bats is weighed for the test and a P-value of 0.0006 (to 4 dp) is calculated for the hypothesis test. What conclusion may be drawn from this test? Use significance level 0. = 0.05. Select one: Q a. There is evidence that the average weight is 109 O b. There is strong evidence that the average weight is not 109 O c. There is insufficient evidence that the average weight is not 10g 0 d. We have proved that the average weight is not 109 Question 13 Not yet answered Marked out of 1.00 V7 Flag question In hypothesis testing, the smaller the P-value, the weaker the evidence against the null hypothesis. True or false? Select one: 0 True 0 False QUGSUOV' 4 A property developer says that the mean land value of similarsized blocks in a Not yet particular area is $50,000. answered . _ . _ . An Investor plans to carry out a hypothesrs test to see If there Is evrdence that the Marked 0\" Of mean land value of these blocks is in fact greater than $50,000. 100 l" Flag Select the hypotheses that the investor should use for this test. queson Select one: o a. H0: u = 50,000, Ha: u 50,000 0 :2. H0: u at 50,000, Ha: u = 50,000 0 Cl. Ho: 0 = 50,000, Ha: u at 50,000 Question 6 A real estate agent wants to see if mean land values in two neighbourhoods are Not yet different. answered Which of the following sets of hypotheses would we use to test whether the mean Marked out of land value in neighbourhood 1 (M1) is different to the mean land value in 1.00 neighbourhood 2 (M2)? Flag question Select one: O a. Ho: M1 - M2 > 0, Ha: M1 - 12 5 0 O b. Ho: M1 - M2 = 0, Ha: M1 - 12 # 0 O c. Ho: M1 - M2 = 0, Ha: M1 - 12 > 0 O d. Ho: M1 - M2 = 0, Ha: M1 - 12 0.10 O b. Ho: p = 0.10, Ha: p 0.10 O d. Ho: p = 0.10, Ha: p # 0.10Question 19 Not yet answered Marked out of 1.00 V Flag question A hypothesis test is used to check for evidence that a machine is putting the wrong amount of beer into bottles (underfilling or overfilling). On the basis of a sample, the null hypothesis is rejected and the machine is shut down for inspection. A thorough examination reveals the problem which is then fixed. From a statistical point of View: Select one: Q a. A correct decision was made 0 b. A type I error was made 0 c. A type II error was made 0 cl. A type land Type II error were made