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 24.64 points. A...

Extracted text: 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 24.64 points. A random sample of 11 test scores from the current group of applicants had a mean score of 73.28 points. Based on these sample results, a statistician found for the population mean a confidence interval extending from 59.5359 to 87.0241 points. Find the confidence level (as a value between zero and one) of this interval.