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Chapter 8: Q 8.8 (page 320)

A simple random sample is taken from a population and yields the following data for a variable of the population:

Find a point estimate for the population mean (i.e., the mean of the variable).

Short Answer

Expert verified

The point estimatate for the population mean is 10

Step by step solution

01

Step 1:Gien information

02

Step 2:Formulae used

The fomulae to find the sample mean is,

x炉=鈭�xin

Where,鈭�xiis the sum of all obserations andn is the total number of observations.

03

Step 3:Simplification

The sample mean is

x炉=鈭�xin=20+2+6+2+12+6+9+8+16+8+2111=11011=10

Thus,The point estimatate for the population mean is10

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