A Random Sample of 40 Companies with Assets Over $10

question 21

Multiple Choice

A random sample of 40 companies with assets over $10 million was surveyed and asked to indicate their industry and annual computer technology expense. The ANOVA comparing the average computer technology expense among three industries rejected the null hypothesis. The mean square error (MSE) was 195. The following table summarized the results: Based on the comparison between the mean annual computer technology expense for companies in the education and tax services industries,________.

• A)a confidence interval shows that the mean annual computer technology expenses are not significantly different
• B)the ANOVA results show that the mean annual computer technology expenses are significantly different
• C)a confidence interval shows that the mean annual computer technology expenses are significantly different
• D)the ANOVA results show that the mean annual computer technology expenses are not significantly different

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Definitions:

PivotChart Button

A tool in spreadsheet software that allows users to quickly create a PivotChart, a graphical representation of data in a PivotTable, enabling easy visualization of complex data sets.

Sunburst Chart

A type of visualization that displays hierarchical data as layered rings, each layer representing a level in the hierarchy.

Scatter Chart

A type of graph used in statistics that displays values for typically two variables for a set of data.

Trendline

A graphed line in statistical data visualizations predicting future trends based on past or current data patterns.