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A population has a mean of 200 and a standard deviation of 60. Suppose a sample...

A population has a mean of 200 and a standard deviation of 60. Suppose a sample of size 100 is selected and  is used to estimate . Use z-table.

  1. What is the probability that the sample mean will be within +/- 4 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.)

  2. What is the probability that the sample mean will be within +/- 17 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.)

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orchestra answered 1 year ago
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