William hypothesizes that money spent on shopping decreases with age for individuals over 60. He should test his hypothesis with:
A) The z-test
B) The Pearson correlation coefficient
C) The single-sample t-test
D) The Wilcoxon signed-rank t-test

Question

Quizplus · Accepted Answer

The Pearson correlation coefficient is appropriate for testing hypotheses about relationships between variables, such as the relationship between age and money spent on shopping. It measures the strength and direction of a linear relationship between two continuous variables.

William Hypothesizes That Money Spent on Shopping Decreases with Age