A study was conducted to determine if the salaries of firefighters from two neighboring cities were different. A sample of 75 fi

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3 years ago

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A study was conducted to determine if the salaries of firefighters from two neighboring cities were different. A sample of 75 fi

refighters from each city was randomly selected. The mean from the first city was $38,200 with a population standard deviation of $3100. The mean from the second city was $40,150 with a population standard deviation of $3300. Construct a 99% confidence interval for μ1 - μ2.

Mathematics

1 answer:

Allushta [10] · Answer 1 · 2022-04-05T22:09:57+03:00

Allushta [10]3 years ago

3 0

We would find the mean average of the two means given.The given are:M1=38200SD1= 3100M2= 40150SD2=3300
Given the formula input the values and the result is Cohen's d = .61Thank you for your question. Please don't hesitate to ask in Brainly your queries.