to h. 26 points) when functioning correctly, a machine produces with with a 0.8%
ID: 3230004 • Letter: T
Question
to h. 26 points) when functioning correctly, a machine produces with with a 0.8% defective rate. A 4,000 switches was inspected when completed batch of 1. (a. and 40 defective switches were found. (a) (2 points) What is the population of interest in the study? (b) (2 points) What is the sample? (c) (2 points) What is the population parameter of interest? (d) (3 points) Develop the null alterative hypotheses that can be used to determine and and therefore whether the machine is producing too many defective switches needs adjustment. (e) (6 points) Apply the p-value approach to test the hypotheses developed in (d). (Compute the p-value and make a conclusion in the context of the problem.) Let a be 10%.Explanation / Answer
a)
switches produced by the machine
b)
population of interest is the batch of 4000 switches
c)
population parameter of intersest are the defective switches
d)
N0 = Machine is producing switches with defective rate more than 0.8%
N1 = Machine is producing switches with defective rate equal or less than 0.8%
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