The A-1 Video Rental Has Run Two Specials in the Local

question 27

Essay

The A-1 Video Rental has run two specials in the local newspaper.One was a two-for-one rental for Tuesday through Thursday.The second was for $1 off on Friday and Saturday.A computer output is shown below: $$\begin{array} { l c r c c } & \text { n } & \text { MEAN } & \text { STDEV } & \text { SEMEAN } \\\text { Tues-Thur } & 15 & 185.5 & 28.2 & 7.3 \\\text { Fri-Sat } & 13 & 268.2 & 30.6 & 8.5\end{array}$$ Determine at the 0.05 level if the standard deviations of the populations are equal.
Test statistic = ____________________
Conclusion: ____________________

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Definitions:

Sample Size

The number of observations or individual elements selected from a population to be included in a study or experiment.

Effect Size

A metric that assesses the extent of a phenomenon or the robustness of the link between variables.

Z-Test Statistic

A statistical measure used in hypothesis testing, representing the number of standard deviations a data point is from the mean.

Interpret

To explain the meaning of information, data, or actions to understand their significance or implications.