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 $62 500. A random sample of 30 specialists is drawn from this population. What is the probability that the mean salary of the sample is less than $59 500 . Assume standard deviation is 6400. The probability that the mean sample is less than 59500?

suppose a simple random sample of size n=49 is obtained from a population with

μ=84 and σ=28.

Choose th ecorrect description of the shape of the sampling distribution of x.

a. the distribution is uniform.

b. the distribution is approx. normal

c. the distribution is skewed left

d. skewed right

e. the shape is unknown

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