The College Board reported the following mean scores for the three parts of the SAT: Critical Reading
Question:
The College Board reported the following mean scores for the three parts of the SAT: Critical Reading 502 Mathematics 515 Writing 494 Assume that the population standard deviation on each part of the test is σ = 100. If required, round your answers to two decimal places. (a) For a random sample of 30 test-takers, what is the sampling distribution of x for scores on the Critical Reading part of the test? (b) For a random sample of 60 test-takers, what is the sampling distribution of x for scores on the Mathematics part of the test? (c) For a random sample of 90 test-takers, what is the sampling distribution of x for scores on the Writing part of the test?
Essentials of Statistics for Business and Economics
ISBN: 978-1305081598
7th edition
Authors: David Anderson, Thomas Williams, Dennis Sweeney, Jeffrey Cam