To disprove a previous study that claims that college graduates make an average salary of $46,000, a researcher records the salaries of 50 graduates and find that the sample mean is $43,000 with a standard deviation of $4,500. What is the z-value, and can she reject the null hypothesis? O The z-value is -0.67. There is not enough evidence to reject the claim. The z-value is -0.67. There is enough evidence to reject the claim. The z-value is 0.67. There is enough evidence to reject the claim. The z-value is 0.67. There is not enough evidence to reject the claim.
To disprove a previous study that claims that college graduates make an average salary of $46,000, a researcher records the salaries of 50 graduates and find that the sample mean is $43,000 with a standard deviation of $4,500. What is the z-value, and can she reject the null hypothesis? O The z-value is -0.67. There is not enough evidence to reject the claim. The z-value is -0.67. There is enough evidence to reject the claim. The z-value is 0.67. There is enough evidence to reject the claim. The z-value is 0.67. There is not enough evidence to reject the claim.
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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