Continue calculations to find Z.
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the least proportion/probability for each Z score.
Either-or probabilities are found by adding the individual probabilities.
Given the mean = $12
Standard deviation = $2.50
Suppose that a large state university graduate research assistants are paid by the hour. Data from the personnel office show the distribution of hourly wages paid to graduate students across the campus is approximately normal with a mean of $12, and standard deviation of $2.50
Determine
G) probability of selecting at random from the personnel files a graduate assistant whose hourly wage is extreme in either direction---either $10 or below or $14 or above
I am stuck on this would I do (14-12)/2.5 and (10-12)/2.5 to find the z-score? I'm confused about the proper steps
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