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Explain the difference between a population and a sample

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Reference no: EM131941730

1. Explain the difference between a population and a sample. Give five examples.

2. A grocery store sells an average of 478 loaves of bread each week. Sales (X) are normally distributed with a standard deviation of 17.

(a) If a random sample of size n = 1 (week) is drawn, what is the probability that the X value will exceed 495?

(b) If a random sample of size n = 4 (weeks) is drawn, what is the probability that the X value will exceed 495?

(c) Why does your response in part (a) differ from that in part (b)?

Reference no: EM131941730

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