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(Solved): A Population Has A Mean Of 300 And A Standard Deviation Of 80. Suppose A Sample Of Size 125 Is Selec...
A population has a mean of 300 and a standard deviation of 80. Suppose a sample of size 125 is selected and is used to estimate. Use z-table.
- 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.)
- 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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