i need this asap The mean of a sample of 25 was calculated as mean of 500.

i need this asap

 

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The mean of a sample of 25 was calculated as mean of 500. The sample was randomly drawn from a population whose standard deviation is 15. Estimate the population mean with 95% confidence. ANS: Part b) (3 marks) The following sample of 16 measurements was selected from a population that is approximately normally distributed. Construct a 90% confidence interval for the population mean. 61 85 92 77 83 81 75 78 95 87 69 74 76 81 80 83 The mean of a sample of 25 was calculated as mean of 500. The sample was randomly drawn from a population whose standard deviation is 15. Estimate the population mean with 95% confidence. ANS: Part b) (3 marks) The following sample of 16 measurements was selected from a population that is approximately normally distributed. Construct a 90% confidence interval for the population mean. 61 85 92 77 83 81 75 78 95 87 69 74 76 81 80 83