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# Bad eggs Sale of eggs that are contaminated with

ISBN: 9781429245593 85

## Solution for problem R7.1 Chapter 7

The Practice of Statistics | 4th Edition

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The Practice of Statistics | 4th Edition

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Problem R7.1

Bad eggs Sale of eggs that are contaminated with salmonella can cause food poisoning in consumers. A large egg producer takes an SRS of 200 eggs from all the eggs shipped in one day. The laboratory reports that 9 of these eggs had salmonella contamination. Unknown to the producer, 0.1% (one-tenth of 1%) of all eggs shipped had salmonella. Identify the population, the parameter, the sample, and the statistic. Exercises R7.2 and R7.3 refer to the following setting. Researchers in Norway analyzed data on the birth weights of 400,000 newborns over a six-year period. The distribution of birth weights is approximately Normal with a mean of 3668 grams and a standard deviation of 511 grams.9 In this population, the range (maximum minimum) of birth weights is 3417 grams. We used Fathom software to take 500 SRSs of size n ? 5 and calculate the range (maximum minimum) for each sample. The dotplot below shows the results. s Understand the definition of a sampling distribution. s Distinguish between population distribution, sampling distribution, and the distribution of sample data.

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