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.