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Chapter 13: Q.13.21 (page 532)

Figure 13.7 shows side-by-side boxplots of independent samples from three normally distributed populations having equal standard deviations. Based on these boxplots, would you be inclined to reject the null hypothesis of equal population means? Why?

Short Answer

Expert verified

The null hypothesis of population means is impossible to reject.

Step by step solution

01

Given Information

Consider three normally distributed populations with equal standard deviations in box plots.

02

Explanation

We may deduce from the box plots that there is no significant variation among the sample means when compared to the variation within the samples.

As a result, the null hypothesis of population means must be accepted.

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