8.36 Suppose that 40% of all U.S. employees contribute to a retirement plan (p = .40). a. In a random sample of 100 employees, what is the approximate probability that at least half of those in the sample contribute to a retirement plan? b. Suppose you were told that at least 60 of the 100 employees in a sample from your state contribute to a retirement plan. Would you think p = .40 for your state? Explain.

8.36 Suppose that 40% of all U.S. employees contribute to a retirement plan (p = .40). a. In a random sample of 100 employees, what is the approximate probability that at least half of those in the sample contribute to a retirement plan? b. Suppose you were told that at least 60 of the 100 employees in a sample from your state contribute to a retirement plan. Would you think p = .40 for your state? Explain.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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