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  • 13-05-2024
  • Mathematics
Answered

A study was conducted to determine if the salaries of librarians from two neighboring cities were equal. A sample 15 librarians from each city was randomly selected. The mean from the city was $28,900 with standard deviation of $2,300. The mean from the second city was $30,000 with standard deviation of $2,100. Construct a 95% confidence interval for mean1-mean2



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