1). Decide whether there is a positive correlation, negative correlation, or no correlation in the following…

1). Decide whether there is a positive correlation, negative correlation, or no correlation in the following pairs of variables: A) Amount of alcohol consumed and speed of reaction to a suddenly appearing stimulus. B) Height and intelligence. C) Number of calories consumed and weight. D) How much pain a person is in and happiness. E) The rating of physical attractiveness of husbands compared to the rating of physical attractiveness of their respective wives. F) IQ scores and the number of trials to learn a list of nonsense syllables for students in a general psychology class. G) Sales of McDonald’s hamburgers per day in a city and the number of people committed per day to a state mental institution. H) Amount of time spent in practice and the average golf score. I) Number of siblings and the likelihood of developing lung cancer. J) Length of depression and the probability of suicide. K) Age and number of boyfriends/girlfriends a person has had. 2). A random sample of 10 persons was chosen and they were asked how old they were and how many boyfriends/girlfriends they have had/have. The following is the information obtained, determine the correlation coefficient, r. Test it for significance. Show ALL your work below. Age (X) X2 Y2 XY Number of boyfriends or girlfriends (Y) 3 17 19 14 25 21 28 20 24 15 18 2 2 5 4 4 7 4 2 1

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