A Manager Is Interested in Testing Whether Three Populations of Interest

question 125

Multiple Choice

A manager is interested in testing whether three populations of interest have equal population means.Simple random samples of size 10 were selected from each population.The following ANOVA table and related statistics were computed: Conduct the appropriate test of the null hypothesis assuming that the populations have equal variances and the populations are normally distributed.Use a 0.05 level of significance.

• A)Using the F test approach,because F = 3.354 < critical F = 9.84,we reject the null hypothesis and conclude that the population means are not all equal.
• B)Using the F test approach,because F = 3.354 < critical F = 9.84,we do not reject the null hypothesis and conclude that the population means are all equal.
• C)Using the F test approach,because F = 9.84 > critical F = 3.35,we reject the null hypothesis and conclude that the population means are not all equal.
• D)Using the F test approach,because F = 9.84 > critical F = 3.35,we do not reject the null hypothesis and conclude that the population means are all equal.

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Definitions:

Counseling Research

involves systematic inquiry and study of counseling methods to establish evidence-based practices and improve therapeutic outcomes.

Rated

Evaluated or classified according to a standard scale of values, quality, or performance.

Projective Techniques

Psychological assessment tools that encourage subjects to project their feelings, thoughts, and perceptions onto ambiguous stimuli.

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Ambiguous stimuli are materials used in psychological research that can be interpreted in multiple ways, often to study perception, cognition, or personality.