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In: Statistics and Probability

A manufacturing assembly line does a quality check by sampling 200 of its products. It finds...

A manufacturing assembly line does a quality check by sampling 200 of its products. It finds that 80 of the parts are defective.
What are n, x and p’ ? (Round p’ to 2 decimal places)
Define the random variable of p’ using the notation: Round mean and standard deviation to 2 decimal places.
Create a 95% confidence interval for the proportion of defective parts for the company. Also find the width of the CI. (Round upper and lower bounds to 3 decimal places).
In a complete sentence, explain what this particular confidence interval means.
Find the 90% confidence interval if sample size was 150 instead of 200 products and 60 were found to be defective. And find the width.
Why is the 90% CI wider than the 95% CI?
please list out details

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