Show transcribed image text 000 AT&T LTE 7:41 PM 53% . ì„ mathxl.com We to MyADP Wheel of F Ims.ssc.ed… McGraw-H Homework Do Hom..Welcome t.. MTH 126-301, Fall 2017 Lisa Koscielski 12/1/17 7:41 PM Homework: Section 9.4 Homework Save Score: 4 of 5 pts 1 of 6 (8 complete) Hw Score: 81.79%, 28.63 of 35 pts 9.4.39 Question Help The weights of four randomly and independently selected bags ofpotatoes labeled 20 pounds were found to be 20.8, 21.9. 20.4, and 21.7. Assume Normality a. Using a two-sided abemative hypothesis, should you be able to reject the hypothesis that the population mean is 20 pounds using a significance level of 0.057 Why or why not? The confidence interval is reported here: I am 95% confident the population mean is between 20.1 and 22.3 pounds. b. Test the hypothesis that the population mean is not 20 Use a signifcance level of 0.05 C. Choose one of the following conclusions i We cannot reject a population mean of 20 pounds. We can reject a population mean of 20 pounds. i. The population mean is 21 2 pounds. a. Choose the correct answer below. O A Do not reject the hypothesis, because the interval does not contain the proposed mean. OB. Reject the hypothesis, because the interval contains the proposed mean. C. Reject the hypothesis, because the interval does not contain the proposed mean D. There is insufficient information to determine if the hypothesis should be rejected. E Do not reject the hypothesis, because the interval contains the proposed mean b. Determine the null and altenative hypotheses. Choose the correct answer below B H0: μ=20 Ha: μ
000 AT&T LTE 7:41 PM 53% . ì„ mathxl.com We to MyADP Wheel of F Ims.ssc.ed… McGraw-H Homework Do Hom..Welcome t.. MTH 126-301, Fall 2017 Lisa Koscielski 12/1/17 7:41 PM Homework: Section 9.4 Homework Save Score: 4 of 5 pts 1 of 6 (8 complete) Hw Score: 81.79%, 28.63 of 35 pts 9.4.39 Question Help The weights of four randomly and independently selected bags ofpotatoes labeled 20 pounds were found to be 20.8, 21.9. 20.4, and 21.7. Assume Normality a. Using a two-sided abemative hypothesis, should you be able to reject the hypothesis that the population mean is 20 pounds using a significance level of 0.057 Why or why not? The confidence interval is reported here: I am 95% confident the population mean is between 20.1 and 22.3 pounds. b. Test the hypothesis that the population mean is not 20 Use a signifcance level of 0.05 C. Choose one of the following conclusions i We cannot reject a population mean of 20 pounds. We can reject a population mean of 20 pounds. i. The population mean is 21 2 pounds. a. Choose the correct answer below. O A Do not reject the hypothesis, because the interval does not contain the proposed mean. OB. Reject the hypothesis, because the interval contains the proposed mean. C. Reject the hypothesis, because the interval does not contain the proposed mean D. There is insufficient information to determine if the hypothesis should be rejected. E Do not reject the hypothesis, because the interval contains the proposed mean b. Determine the null and altenative hypotheses. Choose the correct answer below B H0: μ=20 Ha: μ
