Dr. Kendi Sadek is an industrial psychologist. She is currently studying stress among executives of Internet companies. She has developed a questionnaire that she believes measures stress.score above 80 indicates stress at a dangerous level. A random sample of 15 executives revealed the following stress level scores. 94 78 83 90 78 99 97 90 97 90 93 94 100 75 84 Click here for the Excel Data File a. Find the point estimate of the population mean. Note: Round your answer to 2 decimal places. Estimated population mean square b. Construct a 95% confidence level for the population mean. Note: Round your answers to 2 decimal places. Confidence interval for the population mean is between square and square

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