Question

In: Statistics and Probability

A population of values has a normal distribution with μ=7.8 and σ=14.6. You intend to draw...

A population of values has a normal distribution with μ=7.8 and σ=14.6. You intend to draw a random sample of size n=200. Find the probability that a single randomly selected value is between 7.6 and 9.9.

P(7.6 < X < 9.9) =

Find the probability that a sample of size n=200 is randomly selected with a mean between 7.6 and 9.9.

P(7.6 < M < 9.9) =

Solutions

Expert Solution

This problem uses the concept of Normal Distribution, first we calculate the z score , then we find the probability using the z scores


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