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A random sample of size 25 is taken from a nor- mal population having a mean of 80 and a standard deviation of 5. A second random sample of size 36 is taken from a different normal population having a mean of 75 and a standard deviation of 3. Find the probability that the sample mean computed from the 25 measurements will exceed the sample mean com- puted from the 36 measurements by at least 3.4 but less than 5.9. Assume the difference of the means to be measured to the nearest tenth.

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3 votes

Answer: .7073

Explanation:

User Wilmar Van Ommeren
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4 votes

Answer:

4

Explanation:

User David Fleeman
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7.8k points

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