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Answering the questions

Answering the questions.

I’m trying to learn for my Statistics class and I’m stuck. Can you help?

I will send you the book to check the chapter and complete the following qustions

For this case:

-Use a sample size of 10 cars. Many more than 10 cars should be sampled. Write a short essay describing how you would arrive at a sample size to collect if this exercise was “for real.” Use no more than about ½ page.

-Suppose you arrived at a sample size of 500 cars. What procedure would you use to collect the 500 data points.

-What procedure would you insert into the data collection process to reduce the incidence of dirty data.

-Design a notional (practice) test using a sample of 10 cars to demonstrate how the actual test could be conducted. For each car, assign a notional number of miles since the last service call or purchase of the car, with miles ranging from 30,000 to 50,000. Perform the correct statistical test and show all calculations. Use Excel to calculate the sample standard deviation. Produce the point estimate for the average miles, and the associated 99% confidence interval for the average.

Answering the questions