Which of the following examples is not a test with dependent samples. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Comparing mean life satisfaction scores for seniors (age 65 ) and for middle-aged adults (ages 40-50). b Comparing pre- and post-test number of hours of sleep daily. c Comparing the number of alcoholic drinks consumed in a typical day for pairs of twins. d Comparing the number of words read per minute for students before and after a class in speed reading. Unanswered2 attempts left