Solution Found!
Answer: Assume that the sample is taken from a large
Chapter 6, Problem 14E(choose chapter or problem)
Problem 14E
Assume that the sample is taken from a large population and the eorrection factor can be ignored.
SAT ScoresThe national average SAT score (for Verbal and Math) is 1028. Suppose that nothing is known about the shape of the distribution and that the standard deviation is 100. If a random sample of 200 scores were selected and the sample mean were calculated to be 1050, would you be surprised? Explain.
Questions & Answers
QUESTION:
Problem 14E
Assume that the sample is taken from a large population and the eorrection factor can be ignored.
SAT ScoresThe national average SAT score (for Verbal and Math) is 1028. Suppose that nothing is known about the shape of the distribution and that the standard deviation is 100. If a random sample of 200 scores were selected and the sample mean were calculated to be 1050, would you be surprised? Explain.
ANSWER:
Solution 14E
Step1 of 2:
From the given problem we have:
Here we need to check whether the probability of sample mean is less than 0.05 or not.
Step2 of 2: