a consumer organization wants to estimate the actual tread wear index of a brand name of tires that claims "graded 250" on the sidewall tire. A random sample of n=17 indicates a sample mean tread wear index of 237.6 and a sample standard decation of 29.7

8 of 12 12 completely HW Score: 60%, 18 of X Instructor-created question Question A consumer organization wants to estimate the actual treat wear index of a brand name of times a daim graded 200" on the side of the time. A random sample of 17 indices are mean adinda 2375 and ample standard deviation of 287. Complete parts (a) through assuming that the population of tread wearinders is normally distributed construct 96% confidence intervalimate of the population meant weindes for reproduced by this manufacturer Els Round to wo decimal places as needed) 1. Do you think that the connummer organization should score the manufacture of producing tes that do not meet the performance nformation on the dewal of the tre? Espin QA Na, because a grade of 250 is not in the 8. Ne because a grade of 250 is in the interval Oc. Yes, but a rude of 250 is the interval ... Yes, because a grade of 250 rotinthewal Explain why w obrve trend wear index of 255 for a particulars is not even thoutside the confidence developed Antsuste is only 0.50 standard deviations above the same Os is not unbec. is actually in the cadence O is not unusual Destis only 0.07 vand devensbove the confidence OD is because it ide the corner cak to you and the Check All parts showing & 7 0 8 4 3 5 2 P T Score: 0 of 4 pts 8 of 12 12 com HW Score 80%, 18 of 30 X Instructor-created question Aco.mer organization wants to imate the actress index of a brand name of the demanded the idea of the Ardorpen in der standard deviation of 29.7. Complete parts through Assuming that the population of brand wear index is normally distributed.com 16% confidence interesate the population mean wwwindeborse produced by the under the UssRound to be decimal places needed) h. Do you think that the consumer organization should use the manufacturer of producing tres that do not meet the performance Information on the wall of their QA Nebesa grade of 250 is not in the Herval OB. No, because a grade of 250 is in the verval OG. Yes, because a grade of 250 OD. Yes, because a grade of 250 is in the interval Explain why herved roadwar index of 255 for a particulier is the confidence interval developed OA is not urutu because it is only as standard deviation above OB is nou because it in the colonies c.not because it is only 0.07 standard deviations ove the confidence a OD is not unusual because that the confidence Cior to your drenic Check All parts showing MacBook Air a ! 1 80 888 14 FE F3 * de! Ne $ 4 unde A 6 & 7 OBOD 8 1 HW SOON. 1830 Ductor-created question Aconsumer argeton wants to stimate the actudinea brand name of the deserontheid of the window standard deviation of 2.7. Complete part() through Asuming that the population of tread wearinderea aromally distributed contra confidence intervalimate the population meandre by me [ss Round to two decimal places needed) b. Do you think that the consumer arparation should come the market of producing that do not meet the performance maten OA No, because a grade of 250 spot in the interval OB No, because a grade of 250 Interval OC. Yes, because a grade of 250 is interval OD. Yes, because grade of 250 is not in the interval c. Explain why an observed tread wear we of 255 for article is not even though the central developed On is not unusual because it is only so standard deviation sheve OB. Ris not because they interval OC is nou because it is only 0.07 donne OD. Ris not unusual betis just side the conce Click to select your answer and then click Check All parts showing MacBook Air > 80 888 FI 13 esc F1 % 5 A 6 & 7 SET # 3 8 9 4 N 8 of 12 12 completely HW Score: 60%, 18 of X Instructor-created question Question A consumer organization wants to estimate the actual treat wear index of a brand name of times a daim graded 200" on the side of the time. A random sample of 17 indices are mean adinda 2375 and ample standard deviation of 287. Complete parts (a) through assuming that the population of tread wearinders is normally distributed construct 96% confidence intervalimate of the population meant weindes for reproduced by this manufacturer Els Round to wo decimal places as needed) 1. Do you think that the connummer organization should score the manufacture of producing tes that do not meet the performance nformation on the dewal of the tre? Espin QA Na, because a grade of 250 is not in the 8. Ne because a grade of 250 is in the interval Oc. Yes, but a rude of 250 is the interval ... Yes, because a grade of 250 rotinthewal Explain why w obrve trend wear index of 255 for a particulars is not even thoutside the confidence developed Antsuste is only 0.50 standard deviations above the same Os is not unbec. is actually in the cadence O is not unusual Destis only 0.07 vand devensbove the confidence OD is because it ide the corner cak to you and the Check All parts showing & 7 0 8 4 3 5 2 P T Score: 0 of 4 pts 8 of 12 12 com HW Score 80%, 18 of 30 X Instructor-created question Aco.mer organization wants to imate the actress index of a brand name of the demanded the idea of the Ardorpen in der standard deviation of 29.7. Complete parts through Assuming that the population of brand wear index is normally distributed.com 16% confidence interesate the population mean wwwindeborse produced by the under the UssRound to be decimal places needed) h. Do you think that the consumer organization should use the manufacturer of producing tres that do not meet the performance Information on the wall of their QA Nebesa grade of 250 is not in the Herval OB. No, because a grade of 250 is in the verval OG. Yes, because a grade of 250 OD. Yes, because a grade of 250 is in the interval Explain why herved roadwar index of 255 for a particulier is the confidence interval developed OA is not urutu because it is only as standard deviation above OB is nou because it in the colonies c.not because it is only 0.07 standard deviations ove the confidence a OD is not unusual because that the confidence Cior to your drenic Check All parts showing MacBook Air a ! 1 80 888 14 FE F3 * de! Ne $ 4 unde A 6 & 7 OBOD 8 1 HW SOON. 1830 Ductor-created question Aconsumer argeton wants to stimate the actudinea brand name of the deserontheid of the window standard deviation of 2.7. Complete part() through Asuming that the population of tread wearinderea aromally distributed contra confidence intervalimate the population meandre by me [ss Round to two decimal places needed) b. Do you think that the consumer arparation should come the market of producing that do not meet the performance maten OA No, because a grade of 250 spot in the interval OB No, because a grade of 250 Interval OC. Yes, because a grade of 250 is interval OD. Yes, because grade of 250 is not in the interval c. Explain why an observed tread wear we of 255 for article is not even though the central developed On is not unusual because it is only so standard deviation sheve OB. Ris not because they interval OC is nou because it is only 0.07 donne OD. Ris not unusual betis just side the conce Click to select your answer and then click Check All parts showing MacBook Air > 80 888 FI 13 esc F1 % 5 A 6 & 7 SET # 3 8 9 4 N