a.
Whether the statement is a parameter or a statistic.
a.
Answer to Problem 5E
The statement is a parameter.
Explanation of Solution
Given information:
Mean diameter of the container
Mean diameter of the 100 bearings
Know that a descriptive measure for a population is known as a parameter. Also, a descriptive measure for a sample is known as a statistic.
Here, the mean diameter of the big container is a descriptive measure for a population. This means that it cannot be a statistic and it is a parameter.
Also, the population mean is,
Hence, the statement is a parameter.
b.
The appropriate notation to describe each number.
b.
Answer to Problem 5E
The notation of the population mean is
Explanation of Solution
Know that a descriptive measure for a population is known as a parameter. Also, a descriptive measure for a sample is known as a statistic.
Here, the mean diameter of 100 bearings from the big container is a descriptive measure for a sample.
Also, the sample mean is,
Hence, the notation of the population mean is
Chapter 7 Solutions
The Practice of Statistics for AP - 4th Edition
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