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Chapter 3: Q 3.16. (page 101)

For a particular population is the population mean a variable? What about a sample mean?

Short Answer

Expert verified

No,

For particular population, the population mean is not a variable, since the population mean is a constant.

Yes,

For particular population, the sample mean is a variable since the sample mean are varies from sample to sample.

Step by step solution

01

Step 1. Given information.  

For a particular population is the population mean a variable? What about a sample mean?

02

Step 2. Explanation for given statement. 

The population mean is not avariable for a given population because it is a constant.

The sample mean is a variable for a particular population since it fluctuates from sample to sample.

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Most popular questions from this chapter

Which measure of variation is preferred when

(a) the mean is used as a measure of center?

(b) the median is used as a measure of center?

The data set has mean 30and standard deviation4 . Approximately what percentage of the observations lie between 22and 38?

The data set has 150observations and has mean 35and standard deviation 4. Approximately how many observations lie between 31and 39?

A quantitative data set has size 40. At least how many observations lie within two standard deviation to either side of the mean?

Simple data sets have been given for you to try locating the descriptive metrics mentioned in this section. For each data set separately.

(a) Calculate the quartiles,

(b) calculate the interquartile range

(c)compile a five-number summary.

1,2,3,4,5,6,1,2,3,4,5,6
See all solutions

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