A gum manufacturer wants to determine whether blue packaging or red packaging is preferred. The company performs a sales test by introducing red packages into a random sample of ten stores and blue packages are introduced in an independent, random sample of ten stores. The technique most appropriate for analyzing the data is
A) paired sample t-test for means.
B) Spearman rank-order correlation analysis.
C) regression analysis.
D) independent samples t-test for means.
E) correlation analysis.

Question

Quizplus · Accepted Answer

The independent samples t-test for means is appropriate here because the company is comparing the means of two independent groups (sales from stores with red packaging vs. sales from stores with blue packaging) to determine if there is a significant difference in preference.

A Gum Manufacturer Wants to Determine Whether Blue Packaging or Red