The quality-control manager at a compact fluorescont light bulb (CFL) factory needs to determine whether the mean life of a large shipment of CFLS is equal to 7470hours The population standard deviation is 1,120 hours A random sample of 64 light bulbs indicates a sample mean life of 7,162 hoursa. At the 0.05 level of significance, is there evidence that the mean life is different from 7470 hours?b. Compute the p-value and interpret its meaning.c. Construct a 95% confidence interval estimate of the population mean lide of the bight bulbsd. Compare the results of (a) and (c) What conclusions do you reach?e. Compare the results of parts (a) through (d) to those when the standard deviation is 1,400 hoursCU aua aj u e e ae e a aunn nn wRune e H a uore U UuraOC. The results of (a) and (c) are not the same. There is sufficient evidence to indicate that the mean ife is different from 7470 hoursOD. The results of (a) and (c) are the same There is sufficient evidence to indicate that the mean life is different from 7470 hourse. Compare the results of parts (a) through (d) to those when the standard deviation is 1,400 When the standard deviation is 1,400, ZeTAT-176, the p-value is0 078, and the 95% confidence interval is 6,819 sus7,505 State the conclusion for the new standard deviation using the cntical value approach Compare theresults to part (a)Using the critical value approach,Ho This result isV the result found in part (a) because Z9TAT hasin absolute valueState the conclusion for the new standard deviation using the p-value approach Compare the results to part (b)Using the p value approach,V Họ This result isthe result found in part (b) because the p value hasState the conclusion for the new standard deviation using the confidence interval approach Compare the results to part (c)Using the confidence interval approach,V Ho This result isV the result found in part (c), because the confidence interval has The quality-control manager at a compact fluorescent light bulb (CFL) factory neods to determine whether the mean life of a large shipment of CFLS is equal to 7470hours. The population standard deviation is 1,120 hours A random sample of 64 light bulbs indicates a sample mean Me of 7,162 hoursa. At the 0 05 level of significance, is there evidence that the mean ife is different from 7470 hours?b. Compute the p-value and interpret its meaningc. Construct a 95% confidence interval estiımate of the population mean life of the light buibsd. Compare the results of (a) and (c) What conclusions do you reach?e. Compare the results of parts (a) through (d) to those when the standard deviation is 1,400 hoursWhat is/are the critical value(s)?(Round to two decimal places as needed Use a comma to separate answers as needed )What is the final conclusion?OA Reject H, There is suficient evidence to ndicate that the mean ife is difforent from 7470 hoursOB. Fail to reject H, There is not sufticient evidence to indicate that the mean ife is different trom 7470 hoursOC. Fail to rejoct H There is sufficient evidence to indicate that the mean ife is diferent from 7470 hoursOD. Reject H, There is not suffcient evidence to indicate that the mean ide is diferent from 7470 hoursb. What is the p-value?O(Round to three decimal places as needed )Interpret the meaning of the p-valueThe quality-control manager at a compact fluorescent light bulb (CFL) factory needs to determine whether the mean ife of a large shipment of CFLS is equal to 7470hours. The population standard deviation is 1,120 hours Arandom sample of 64 light bulbs indicates a sample mean ife of 7,162 hoursa. Al the 0 05 level of significance, is there evidence that the mean life is different from 7470 hours?b. Compute the p -value and interpret its meaningc. Construct a 95% confidence interval estimate of the population mean life of the ight bulbsd. Compare the results of (a) and (c) What conclusions do you reach?e. Compare the results of parts (a) through (d) to those when the standard deviation is 1,400 hoursI5Interpret the meaning of the p value.The p-value is the probability of obtainingwith a meanhours, given that thehypothesis is truee. Construct a 05% confidence interval estimate of the population mean Iife of the light bulbsOsus (Round to the noarest whole number as needed)d. Compare the results of (a) and (c) What conclusions do you reach?OA The results of (0) and (c) are not the same. There is not sufficient evidence to indicate that the mean ife is different from 7470 hoursOB. The results of (a) and (c) are the same There is not sufficient evidence to indicate that the mean ife is different from 7470 hoursOC. The results of (a) and (c) are not the same There is sufficent evidence to indicate that the mean ife is diferent from 7470 hoursOD. The results of (0) and (c) are the same There is suficient evidence to indicate that the mean fe is diferent hom 7470 hours. Compare the results of parts (a) through (d) to those when the standard deviation is 1.400 When the standard deviation is 1,400, ZgTAT-176, the p value is0 078, and the 95% confidence interval is 6.819sus7.505 State the conclusion for the new standard deviation using the crtical value approach Compare theresults to part (a)

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Given Information:
Hypothesized value of population mean μ0=7470
Population standard deviation…