In: Statistics and Probability
A researcher compared pockets in men’s and women’s jeans of the same size waistband. According to their data, the 38 women’s jean pockets had an average height of 15.20 cm, with a standard deviation of 2.65 cm, and the 44 men’s jeans had an average height of 16.75cm, with a standard deviation of 3.21 cm. Is this sufficient evidence at the 5% significance level to conclude that the men’s jeans’ pockets are significantly larger than the women’s? Do not round intermediate calculations.
| 
 
  | 
 Men’s Jeans  | 
 Women’s Jeans  | 
| 
 n  | 
 44  | 
 38  | 
| 
 Mean height (cm)  | 
 16.75  | 
 15.20  | 
| 
 Sample standard deviation  | 
 3.21  | 
 2.65  | 
Let 
 denote mean height of Men's Jeans and Women's Jeans
respectively.


There is sufficient evidence to conclude that the men’s jeans’ pockets are significantly larger than the women’s.