A sample of size n 25 is selected from a normal population This sample has a mean of 15 and a sample variance of 4 What is the standard error of the sample mean 2 ) James Ambercrombie believes that the average return on equity in the utility industry, , is greater than 10 What are the null (H0) and...

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A sample of size n= 25 is selected from a normal population. This sample has a mean

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A sample of size n= 25 is selected from a normal population. This sample has a mean of 15 and a sample variance of 4. What is the standard error of the sample mean?

2.) James Ambercrombie believes that the average return on equity in the utility industry, , is greater than 10%. What are the null (H0) and alternative (Ha) hypotheses for his study?

3.) The probability of A is 0.4. The probability of B is 0.32. the probability of (B/A) is 0.5. Using Bayes formula, what is the probability of (A/B)?

Posted Date: May 19, 2024 02:03 AM

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A sample of size n= 25 is selected from a normal population. This sample has a mean

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