Suppose that you live near a McDonald's restaurant and you want to estimate the proportion of all people in your neighborhood who go to McDonald's on a typical day. a. If you had no preliminary estimate for p , how many people should you include in a random sample to be 85% sure that the point estimate p will be within a distance of 0.05 from p? b. Answer part a if you use the preliminary estimate that nationally about 1 in 20 Americans goes to McDonald's every day.

Suppose that you live near a McDonald's restaurant and you want to estimate the proportion of all people in your neighborhood who go to McDonald's on a typical day. a. If you had no preliminary estimate for p , how many people should you include in a random sample to be 85% sure that the point estimate p will be within a distance of 0.05 from p? b. Answer part a if you use the preliminary estimate that nationally about 1 in 20 Americans goes to McDonald's every day.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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