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Chapter 7: Problem 7

The mean weight of all professional NBA basketball players is \(218.8\) pounds. A sample of 50 professional basketball players has a mean weight of \(217.6\) pounds. Which number is \(\mu\), and which number is \(\bar{x}\) ?

Short Answer

Expert verified
The population mean \(\mu\) is 218.8 pounds and the sample mean \(\bar{x}\) is 217.6 pounds.

Step by step solution

01

Identify the Population Mean

\(\mu\) refers to the population mean, which is the average of an entire population. In this context, it is the average weight of all professional NBA basketball players. Therefore, the number for \(\mu\) is 218.8 pounds.
02

Identify the Sample Mean

\(\bar{x}\) refers to the sample mean, which is the average of a subset of the population. In this context, this subset consists of 50 professional players. Therefore, the number for \(\bar{x}\) is 217.6 pounds.

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