​(c) Identify the standardized test statistic. Use technology. z=kjkj ​(Round to two decimal places as​ needed.) ​(d) Decide whether to reject or fail to reject the null​ hypothesis, and​ (e)...

Extracted text: Identify the rejection region(s). Choose the correct answer below. O A. O B. OC. Fail to reject Ho. Fail to reject Ho - Fail to reject H,- Reject Ho. Reject Hg. Reject Ho. Reject Hg- (c) Identify the standardized test statistic. Use technology. Z= (Round to two decimal places as needed.)


Extracted text: A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 743 hours. A random sample of 21 light bulbs has a mean life of hours. Assume the population is normally distributed and the population standard deviation is 64 hours. At a = 0.08, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e). (a) Identify the null hypothesis and alternative hypothesis. Ο Α. H : μ2 743 (claim) H3: u<743 o="" d.="" ho:="" µs733="" ha:="" u=""> 733 (claim) O B. Ho: H<733 (claim)="" oc.="" ho:="" µ="733" ha:="" μ2733="" ha:="" u#733="" (claim)="" o="" e.="" ho:="" µ#743(claim)="" o="" f.="" ho:="" µ="">743 Hạ: us743 (claim) Hạ: u= 743 (b) Identify the critical value(s). Use technology. Zo = (Use a comma to separate answers as needed. Round to two decimal places as needed.)