Let x 1 , x 2 , . . . , x 100 denote the actual net
Question:
Let x1, x2, . . . , x̅ 100 denote the actual net weights (in pounds) of 100 randomly selected bags of fertilizer. Suppose that the weight of a randomly selected bag has a distribution with mean 50 pounds and variance 1 pound2. Let x̅ be the sample mean weight (n = 100).
a. Describe the sampling distribution of x̅.
b. What is the probability that the sample mean is between 49.75 pounds and 50.25 pounds?
c. What is the probability that the sample mean is less than 50 pounds?
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a Since n 100 30 x is approximate...View the full answer
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Related Book For 
Statistics The Exploration & Analysis Of Data
ISBN: 9780840058010
7th Edition
Authors: Roxy Peck, Jay L. Devore
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