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Chapter 13: Q.13.11 (page 532)

One-way ANOVA is a procedure for comparing the means of several populations. It is the generalization of what procedure for comparing the means of two populations?

Short Answer

Expert verified

One -way ANOVA is the generalization of pooled t procedure for comparing the means of two populations.

Step by step solution

01

Given Information

Given in the question, one-way ANOVA is the procedure for comparing the means of two populations.

02

Explanation

Consider using one-way ANOVA. The one-way ANOVA technique compares significant differences between two or more samples. It is the ability of the pooled t-generalization method to generalize to more than two populations. Both test procedures use the same assumptions. The ANOVA test the Null hypothesis, that also indicates that almost all test results are drawn from the same population.

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Most popular questions from this chapter

Fill in the missing entries in the partially completed one-way ANOVA tables.

Explain the reason for the word variance in the phrase analysis of variance.

Fill in the missing entries in the partially completed one-way ANOVA tables.

Movie fans use the annual Leonard Maltin Movie Guide for facts, cast members, and reviews of more than 21000films. The movies are rated from 4stars (4*), indicating a very good movie, to 1 star (1*), which Leonard Maltin refers to as a BOMB. The following table gives the running times, in minutes, of a random sample of films listed in one year's guide.

At the 1%significance level, do the data provide sufficient evidence to conclude that a difference exists in mean running times among films in the four rating groups? (Note:T1=483,T2=573,T3=576,T4=691,ฮฃx12=232.117.)

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?
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