A personnel manager has found that, historically, the scores on aptitude tests given to applicants for entry-level positions follow a normal distribution with standard deviation 21.5 points. A random sample of 15 test scores from the current group of applicants had a mean score of 68.86 points. Based on these sample results, a statistician found for the population mean a confidence interval extending from 59.4783 to 78 2417 points. Find the confidence level (as a value between zero and one) of this interval

Q: A personnel manager has found that, historically, the scores on aptitude tests given to applicants…

A: For the distribution of historical score points, the standard deviation (i.e., the population…

Q: What is the critical value for a 95% confidence interval for estimating a population proportion?

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Q: I need 41, 42, 43, and 44 please.

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Q: In simple linear regression:

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Q: This answer is wrong

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