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A study was conducted to determine if the salaries of librarians from two neighboring cities were...

A study was conducted to determine if the salaries of librarians from two neighboring cities were equal. A sample of 15 librarians from each city was randomly selected. The mean from the first city was $28,900 with a standard deviation of $2300. The mean from the second city was $30,300 with a standard deviation of $2100. Test the hypothesis that the salaries from both cities are equal. Use α = 0.025.

State the null and alternative hypotheses. p value , t test , is it statement conclusion reject or fail .

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