Yoonie is a personnel manager in a large corporation. Each month she must review 10 of the employees. From past experience, she has found that the reviews take her approximately 4 hours each to do with a population standard deviation of 0.9 hours. Let X be the random variable representing the time it takes her to complete one review. Assume X is normally distributed. Let X¯ be the random variable representing the mean time to complete the 10 reviews. Assume that the 10 reviews represent a random set of reviews. (a) What is the mean, standard deviation, and sample size? mean= standard deviation= sample size= (b) Complete the distributions. ROund all decimals to our decimal places. X~(P/B/U/N) (Number, Number) - X~ (P/B/U/N) (Number, Number)
Yoonie is a personnel manager in a large corporation. Each month she must review 10 of the employees. From past experience, she has found that the reviews take her approximately 4 hours each to do with a population standard deviation of 0.9 hours. Let X be the random variable representing the time it takes her to complete one review. Assume X is
(a) What is the mean, standard deviation, and
mean=
standard deviation=
sample size=
(b) Complete the distributions. ROund all decimals to our decimal places.
X~(P/B/U/N) (Number, Number)
-
X~ (P/B/U/N) (Number, Number)
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