Do men really spend more money on St. Patrick's Day as compared to women? A recent survey found that men spend an average of $43.87 while women spend an average of $29.54. Assume that these data were based on a sample of 100 men and 100 women and the population standard deviations of spending for men and women are $32 and $25, respectively. Which of the following is the correct value of test statistic? A) z = −3.53 B) t_df= 3.53 C) t_df= −3.53 D) z = 3.53

Question

Quizplus · Accepted Answer

The test statistic can be calculated using the formula for the difference between two means with known population standard deviations, which leads to a z-test. The positive value indicates the direction of the difference.

Do Men Really Spend More Money on St