BigShots, Inc Using $\alpha$ = 005, the Critical F Value Is _____________

question 44

Multiple Choice

BigShots, Inc.is a specialty e-tailer that operates 87 catalog websites on the Internet.Kevin Conn, Sales Director, feels that the style (color scheme, graphics, fonts, etc.) of a website may affect its sales.He chooses three levels of design style (neon, old world and sophisticated) and randomly assigns six catalog websites to each design style.Analysis of Kevin's data yielded the following ANOVA table. $$\begin{array} { | l | r | r | l | l | } \hline \text { Source of Variation } & \text { SS } & \mathrm { df } & \mathrm { MS } & \boldsymbol { F } \\\hline \text { Between Groups } & 68102.33 & 2 & 34051.17 & \\\hline \text { Within Groups } & 29177.67 & 15 & 1945.178 & \\\hline \text { Total } & 97280 & 17 & & \\\hline\end{array}$$ Using $\alpha$ = 0.05, the critical F value is _____________.

• A)3.57
• B)19.43
• C)3.68
• D)19.45
• E)2.85

Determine the appropriate directionality (upper-tailed, lower-tailed, two-sided) of hypothesis tests.

Understand the relationship between sample size and margin of error in confidence intervals.

Comprehend the effect of sample size changes on statistical test outcomes.

Interpret the meaning of p-values in hypothesis testing.

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Definitions:

Milgram Experiment

A psychological experiment conducted by Stanley Milgram in the 1960s to study obedience to authority, where participants were instructed to administer electric shocks to another person.

Stanford University Prison Experiment

A psychological study conducted by Philip Zimbardo in 1971 at Stanford University, where students were assigned roles of prisoners and guards to explore the effects of perceived power.

Generalization

Drawing a conclusion about a certain characteristic of a population based on a sample from it.

Logical Support

The provision of reasons or evidence to justify a claim or argument.