Instructions Keep three decimal places for all calculations and report two decimal places in all answers. You may enter one answer at a time or several answers (depending on how brave you feel at the moment) and then click the "Submit answers" button. If your answer(s) is correct it will appear in green. If your answer(s) is incorrect, it will appear in red (and you should change it). If you can't figure out how to calculate some value you can type "help" into the answer field to get the correct answer (but you won't get points for that trick). When you have all the correct computations, you'll be asked to decide about the HO: and the RH:. Then you'll be told your score so far and asked if you want a new data set to try again or would like to continue with the write-up. age glasses Sum of scores 123 224 Sum of squared scores 25438618 Sample size Mean 20.5 37.33 Standard deviation 2.07 7.14 Sum of cross products Index of covariation Computed r The study was conducted to examine the relationship between age and amount of helping behavior. The researcher had hypothesized that older participants would be more helpful. A mixture of high school and college students who thought they were waiting to participate in a cognitive psychology experiment were innocently seated in the experimental waiting room at a local university. A woman in a laboratory coat came out the door and dropped a large number of plastic glasses on the floor near the student. Each student's age (Age) and the number of glasses that student picked up (Glasses) was recorded. Here are the data for you to analyze. Variation of age Variation of glasses Submit answers df r-critical Your data set Age Glasses 20 28 22 38