QUESTION 1 0.625 points Save Answer Use the following information for the next s

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QUESTION 1 0.625 points Save Answer Use the following information for the next seven questions Engineers in the Mimex Corporation have been working overtime to improve production processes. They focused on the stamping process for a gear that is major component of their walking talking action doll. Because even small savings in time can make the difference in production costs, they squeeze every second from the production lines. They recently devised a new process for the stamp they believe will save them a few seconds on the line. In order to test the new procedure, they ran two lines in the same manufacturing facility, one with the new procedure and one with the old procedure. Over the course of one week, they selected random samples from each line. The data they gathered was the number of seconds it took to stamp the gear and move the gear to the next station. They want to test it with alpha 01 . They have no information about the variances of the times in the two lines. Sample data are below Old Process 45 48 47 49 New Process 50 46 47 49 47 48 Which of the following hypotheses would test the efficiency of the new procedure? 2 0, Hi HD(old-new) *o Ho: HD(old-new) Ho: Hold ew S0: H1: Hold- Hnew0 1 Hold Wnew 0; H1-HD(old-new) HoldT new

Explanation / Answer

Question 1 .

H0 : old -new >=0

Ha : old -new < 0

Here Option D is correct.

Question 2

Here We will use two sample t - test for equal variances. Here we will use t - test as population variances are not known and similarly, we will use equal variance as F- value is not significant.

so, Option D is correct.

QUestion 3.

The research design here is Posttest True Experiment

QUestion 4

The data are best described as Interval/ratio

Question 5

As p - value = 0.000 so we shall reject it at 0.05 and 0.10 level of significance.

Question 6

Option C is correct as there is enough statistical evidence to infer that the new process has increased production time.

Question 7

Test statistic = -5.805

Question 8

p - value = 0.0000

Question 9

Hypothesized probability of type I error = 0.01

Option C is correct as they used 0.01 significance level.

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