Question

Find the probability and interpret the results. If​ convenient, use technology to find the probability.

The population mean annual salary for environmental compliance specialists is about $65,000. a random sample of 32 specialist is drawn from this population. what is the probability that the mean salary of the sample is less than $62,500? Assume σ= 5600

The probability that the mean salary of the sample is less than $62,500 is?

Answer 1

This is a normal distribution question with

Sample size (n) = 32

Since we know that


P(x < 62500.0)=?
The z-score at x = 62500.0 is,

This implies that

PS: you have to refer z score table to find the final probabilities.
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