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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
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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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.
Transcribed Image Text: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.
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