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Chapter 8: Q.2 (page 524)

The weights (in pounds) of three adult males are 160,215and195. The standard error of the mean of these three weights is

(a) 190

(b) 27.84

(c) 22.73

(d) 16.07

(e)13.13

Short Answer

Expert verified

(e) The standard error of mean is13.13

Step by step solution

01

Step-1 Given Information

Given In the question that , The weights of three adult males are 160,215,and195we have to find the correct option.

02

Step-2 Explanation

The formula to compute the standard error of mean is:

StandarderrorMean=蟽n

The values of mean and standard deviation using Ti-83 calculator could be calculated as:

From the above output, the standard deviation =22.73and sample size =3

The standard error of the mean is calculated as follows:

StandarderrorMean=蟽n

localid="1649222387632" =22.733

=13.13

Hence, the correct option is (e)

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