An electronics manufacturing process has historically had a mean completion time of 75 minutes. It is claimed that, due to improvements in the process, themean completion time, u, is now less than 75 minutes. A random sample of 9 completion times using the new process is taken. The sample has a meancompletion time of 74 minutes, with a standard deviation of 11 minutes.Assume that completion times using the new process are approximately normally distributed. At the 0.10 level of significance, can it be concluded that thepopulation mean completion time using the new process is less than 75 minutes?Perform a one-tailed test. Then complete the parts below.Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H,.Ho :0H, :(b) Determine the type of test statistic to use.(Choose one) ▼(c) Find the value of the test statistic. (Round to three or more decimal places.)(d) Find the critical value. (Round to three or more decimal places.)(e) Can it be concluded that the mean completion time using the new process isless than 75 minutes?Yes O No

Answered: Image /qna-images/answer/9ea21f27-6fab-4d8c-bcf2-1f4112027db7.jpg

Answered: An electronics manufacturing process…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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