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:

Historical

Pertaining to events, situations, or conditions from the past that are studied and considered significant.

Relative

A term describing something in comparison or relation to something else, considering its context or situation.

Engineering

The application of scientific, mathematical, and empirical principles and knowledge to innovate, design, develop, maintain, and improve structures, machines, devices, systems, materials, and processes.

Earnings Per Share

A company's profit divided by its number of common outstanding shares, indicating the portion of a company's profit allocated to each share of stock.