In the EAI sampling problem, the population mean is $ 71,300 and the population 0.3472 standard deviation is 5,000 For n=20 there is a probability of obtaining a sample mean + or - 500 within of the population mean. Use z-table. a. What is the probability that x is within 500 of the population mean if a sample of size 40 is used (to 4 decimals)? b. Answer part (a) for a sample of size 80 (to 4 decimals)

In the EAI sampling problem, the population mean is $ 71,300 and the population 0.3472 standard deviation is 5,000 For n=20 there is a probability of obtaining a sample mean + or - 500 within of the population mean. Use z-table. a. What is the probability that x is within 500 of the population mean if a sample of size 40 is used (to 4 decimals)? b. Answer part (a) for a sample of size 80 (to 4 decimals)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 13PPS

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