Test Hypotheses Regarding the Difference of Two Independent Means
-A study was conducted to determine if the salaries of librarians from two neighboring states were equal. A sample of 100 librarians from each state was randomly selected. The mean from the first state was $29,300 with a standard deviation of $2300. The mean from the second state was $30,700 with a standard deviation of $2100. Test the hypothesis that the salaries from both states are equal. Use = 0.05.

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The Answer of Test Hypotheses Regarding the Difference of Two Independent Means
-A study was conducted to determine if the salaries of librarians from two neighboring states were equal. A sample of 100 librarians from each state was randomly selected. The mean from the first state was $29,300 with a standard deviation of $2300. The mean from the second state was $30,700 with a standard deviation of $2100. Test the hypothesis that the salaries from both states are equal. Use = 0.05.