1. If the correlation coefficient is 0.840, what is the unexplained variation? [Marks:2] A) 36.0% B) 16% C) 84% D) 72.5%

2. A grocery store owner claims that the mean amount spent per checkout is less than $47. A test is made of H0: = 47 versus H1: < 47. The null hypothesis is not rejected. State the appropriate conclusion. [Marks:2] A) The mean checkout amount is less than $47. B) There is enough evidence to conclude that the mean checkout price is less than $47. C) There is not enough evidence to conclude that the mean checkout price is less than $47. D) The mean checkout amount is greater than $47.