Suppose that a group of employees are given training regarding efficient practic
ID: 3183130 • Letter: S
Question
Suppose that a group of employees are given training regarding efficient practices. The average number of product they produce is recorded for 24 months before and after the training to see if there is any increase in productivity.
(a) Circle the correct evidence for or against the assumptions needed to do any test or confidence interval for the difference between these two time periods. Circle them (and only the correct plot(s)) and denote them by ”a)”. In the space below, state whether or not the assumptions seem to hold and why.
(b) Find an appropriate hypothesis test on the JMP output for testing if the difference ”Before” and ”After” the training if there is a difference in the amount of products created with = 0.05. State the p-value and a very simple decision (Reject, Don’t Reject). Circle the test in the output and label it ”b)”.
test22016Spring.pdf C Iowa State University of Science and Technology [US] https:// 1/courses/S2017-STA a bb.its.iastate.ed Apps IV Engineering Desig Blackboard Learn B manufacturing test... ECON 355 Q MKT 340 lowa Stat Distributions Before Two sample method ypothesis Test for Means ypothesis Test: Paired MethodExplanation / Answer
Result:
Suppose that a group of employees are given training regarding efficient practices. The average number of product they produce is recorded for 24 months before and after the training to see if there is any increase in productivity.
(a) Circle the correct evidence for or against the assumptions needed to do any test or confidence interval for the difference between these two time periods. Circle them (and only the correct plot(s)) and denote them by ”a)”. In the space below, state whether or not the assumptions seem to hold and why.
Correct plot : After-before
The assumptions are hold .
(b) Find an appropriate hypothesis test on the JMP output for testing if the difference ”Before” and ”After” the training if there is a difference in the amount of products created with = 0.05. State the p-value and a very simple decision (Reject, Don’t Reject). Circle the test in the output and label it ”b)”.
Test statistic =1.1455
P=0.2638
Don’t Reject
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