(Problem #30, page 429) An unknown distribution has a mean of 19 and a standard deviation...
(Problem #30, page 429) An unknown distribution has a mean of 19 and a standard deviation of 20. Let X = the object of interest. What is the sample size if the mean of ΣX is 15,200?
Homework Answers
Mean = 
X / n
19 = 15200 / n
Solve for n
n = 15200 / 19
n = 800
Sample size = 800
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(Problem #30, page
429) An unknown distribution has a mean of 19 and
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