An economic analyst believes the average income for the United States equals $44,000. Suppose she knows that the population standard deviation of income (σ) equals $7,500. A random sample of n = 900 has a mean income of $43,250. Test the analysts claim at the 0.05 level. What is the p-value of the test statistic?
An economic analyst believes the average income for the United States equals $44,000. Suppose she knows that the population standard deviation of income (σ) equals $7,500. A random sample of n = 900 has a mean income of $43,250. Test the analysts claim at the 0.05 level. What is the p-value of the test statistic?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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An economic analyst believes the average income for the United States equals $44,000. Suppose she knows that the population standard deviation of income (σ) equals $7,500. A random sample of n = 900 has a
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