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A normal population has a mean of 21 and a standard deviation of 6. a. Compute thezvalue associated with 27.(Round your answer to 2 decimal

A normal population has a mean of 21 and a standard deviation of 6.

a. Compute thezvalue associated with 27.(Round your answer to 2 decimal places.)

Z

b.

What proportion of the population is between 21 and 27?(Round z-score computation to 2 decimal places and your final answer to 4 decimal places.)

Proportion

c.

What proportion of the population is less than 19?(Round z-score computation to 2 decimal places and your final answer to 4 decimal places.)

Proportion

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