I need help solving some statistic problem. The problems are based on the Kruskal-Wallis One-Way Analysis of Variance. You don't waste time explaining how to do the problem you just tell me the answer to the questions. Just do problems 5-7
Section 17.3 Homework-Eliyah Atkins - Google Chrome X xlitemprod.pearsoncmg.com/api/v1/print/math Print 5. A sample of five lights from four manufacturers has been tested to find the length of time the lights last before failing, with the values (time in hours) shown to the right recorded for each manufacturer. Using a = 0.01, what conclusion for the four manufacturers should you reach about the Type A Type B Type C Type D median length of time the lights last before failing? Explain. 1,213 1,270 1, 119 920 1, 119 1,311 1,313 981 1,248 1,427 1,196 1,074 1,015 1,444 1, 120 1,119 1,487 1,503 1,460 1,039 State the appropriate null and alternative hypotheses. Choose the correct answer below. OA. HO: HA = HB = HC = HD HA: All population medians are different O B. Ho: All population medians are different HA : HA = HB = HC= HD OC. Ho HA = HB = HC =HD HA: Not all population medians are equal O D. Ho: Not all population medians are equal HA HA = HB = HC = HD Based on the sample data, use the Kruskal-Wallis one-way ANOVA procedure to test the null hypothesis using a = 0.01. What is the value of the test statistic? Provide the test statistic corrected for tied rankings. H = (Round to two decimal places as needed.) What is the critical value? XO.01 = Round to four decimal places as needed.) What conclusion can be reached? O A. Reject Ho. There is sufficient evidence to conclude that not all the manufacturers' light bulbs last the same amount of time before failing. O B. Do not reject Ho. There is insufficient evidence to conclude that at least one of the manufacturers' light bulbs lasts longer than the others before failing. O C. Do not reject Ho. There is insufficient evidence to conclude that all the manufacturers' light bulbs last the same amount of time before failing. O D. Reject Ho. There is sufficient evidence to conclude that all the manufacturers' light bulbs last different amounts of time before failing 6. The operating costs, in cents per mile, for 18 police cars (3 types of models) are shown to the right. Perform the appropriate ANOVA test on these data. Assume a significance level of 0.05. State the appropriate null and alternative hypotheses. Do the Car 1 experimental data provide evidence that the median operating cost per mile for the three types of police cars are different? 14.8 Car 2 12.3 Car 3 14.2 15.0 13.4 15.5 14.0 12.9 14.4 12.5 14.6 12.4 13.7 15.2 13.3 13.1 15.4 12.8 State the appropriate null and alternative hypotheses. Choose the correct answer below. OA. Ho: H1 = H2 = H3 HA: Not all population medians are equal O B. Ho: All population medians are different HA : H 1 = H 2 = Ha Type here to search O 10:47 PM "10/23/2020Section 17.3 Homework-Eliyah Atkins - Google Chrome - X xlitemprod.pearsoncmg.com/api/v1/print/math Print 6. The operating costs, in cents per mile, for 18 police cars (3 types of models) are shown to the right. Perform the appropriate ANOVA test on these data. Assume a significance level of 0.05. State the appropriate null and alternative hypotheses. Do the Car 1 Car 12.3 Car 3 experimental data provide evidence that the median operating cost per mile for the three types of police cars are different? 14.8 14.2 15.0 13.4 15.5 14.0 12.9 14.4 12.5 12.4 15 2 14.6 13.7 13.3 13.1 15.4 12.8 State the appropriate null and alternative hypotheses. Choose the correct answer below. OA. Ho: H1 = H2 = H3 HA: Not all population medians are equal O B. Ho: All population medians are different HA : H 1 = H2 = H 3 OC. Ho: H1 = 2 = H3 HA: All population medians are different O D. Ho: Not all population medians are equal HA : H 1 = H2 = H3 Perform the appropriate ANOVA test on these data. Assume a significance level of 0.05. What is the value of the test statistic? HE Round to two decimal places as needed.) What is the critical value? Xo.05 (Round to four decimal places as needed.) What conclusion can be reached? O A. Do not reject Ho. There is insufficient evidence to conclude that all the median operating costs per mile for the three types of police cars are different. O B. Reject Ho. There is sufficient evidence to conclude that at least one of the median operating costs per mile for the three types of police cars is different. O C. Reject Ho. There is sufficient evidence to conclude that all the median operating costs per mile for the three types of police cars are different. O D. Do not reject Ho. There is insufficient evidence to conclude that at least one of the median operating costs per mile for the three types of police cars is different. 7. A nationwide moving company is considering five different brands of nylon tie-down ropes. The purchasing department randomly selected ropes from each company and determined their breaking strengths in pounds. The sample data are in the accompanying table. Based on your analysis, with a Type I error rate of 0.05, can you conclude that a difference exists among the median breaking strengths of the types of nylon ropes? Click the icon to view the data on nylon rope breaking strengths. State the appropriate null and alternative hypotheses. Choose the correct answer below. O A. HOW, = H2 = H3 = H4 = H5 HA : H1 # 12 # H3 # H4 # 15 O B. Ho: Not all population medians are equal. HA : H1 # H2 # 13 # H4 # 15 O C. Ho: Not all population medians are equal. HA : 1 1 = H2 = H3 = 14 = 15 OD. Hon = = = = Type here to search 10:47 PM 10/23/2020Section 17.3 Homework-Eliyah Atkins - Google Chrome X xlitemprod.pearsoncmg.com/api/v1/print/math O D. Do not reject Ho. There is insufficient evidence to conclude that at least one of the median operating costs per mile for the three types of police cars is different. Print A nationwide moving company is considering five different brands of nylon tie-down ropes. The purchasing department randomly selected ropes from each company and determined their breaking strengths in pounds. The sample data are in the accompanying table. Based on your analysis, with a Type I error rate of 0.05, can you conclude that a difference exists among the median breaking strengths of the types of nylon ropes? Click the icon to view the data on nylon rope breaking strengths. State the appropriate null and alternative hypotheses. Choose the correct answer below. O A. Ho: Hy = H2 = Hg = H4 = H5 HA: H1 # 12 # H3 # H4 # 15 O B. Ho: Not all population medians are equal. HA : H1 # 12 # H3 # HA # HS O C. Ho: Not all population medians are equal. HA : H1 = H2 = H3 = H4 = H5 OD. Ho: Hy = H2 = H3 = H4 = H5 HA: Not all population medians are equal. What is the value of the test statistic? H = (Round to two decimal places as needed.) What is the p-value? p-value = (Round to three decimal places as needed.) What conclusion can be reached? (1) Ho. There (2) evidence to conclude that not all of the population medians are equal. 3: Nylon Rope Breaking Strengths Company 1 Company 2 Company 3 Company 4 Company 5 4,686 3,774 4,668 4.063 4,759 4,823 3,998 4.733 4, 102 4,477 4.633 3.924 4.802 4.324 3,732 4,817 3,402 4,524 4,043 4,358 4.391 4.323 3.991 3.970 4.402 4.538 3.763 4,922 3,998 4.150 4.455 4,083 4,139 3,761 4.606 4,566 4,062 4.864 4.274 4.948 5,005 3,947 4,981 4,431 4,455 4,752 3.945 4,693 4,232 4.259 4.701 4.449 5.115 4,120 4.600 3,815 3.912 4.507 4.058 4.164 4,401 3,806 4,400 3.838 (1) O Reject (2) O is insufficient O Do not reject O is sufficient Type here to search O 10:47 PM 10/23/2020
