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umka2103 [35]
4 years ago
15

In a study of annual salaries of employees, random samples were selected from two companies to test if there is a difference in

average salaries. For Company "X", the sample was size 65, the sample mean was $47,000 and the population standard deviation is assumed to be $11,000. For Company "Y", the sample size was 55, the sample mean was $44,000 and the population standard deviation is assumed to be $10,000. Test for a difference in average salaries at a 5% level of significance. What is your conclusion?
Mathematics
1 answer:
vichka [17]4 years ago
7 0

Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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What’s the answer to this question
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Answer:

-9 and -8 ...............

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Step-by-step explanation:

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