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)a paired sample t-test for means.
B)the Spearman rank-order correlation analysis.
C)regression analysis.
D)an independent samples t-test for means.
E)correlation analysis.

Question

Quizplus · Accepted Answer

The experiment involves two independent samples (red package group and blue package group) and the aim is to compare the preferences between the two groups. Therefore, an independent samples t-test for means is the most appropriate technique for analyzing the data. Choice A (paired sample t-test for means) is not suitable because the two groups are independent. Choice B (Spearman rank-order correlation analysis) and E (correlation analysis) are not suitable because the experiment is not looking for a relationship between two variables, but rather a difference between two groups. Choice C (regression analysis) is not suitable because there is only one independent variable (package color) and one dependent variable (sales preference).

A Gum Manufacturer Wants to Determine Whether Blue Packaging or Red