O c. cannot be determined from the information provided. O d. 15 QUESTION 7 The data below indicate the number of children in a family and the number of pets the family has had in the past 5 years. a. Calculate SP using the computational method, then calculate r. (5 points) number of children number of pets Y XY 6 6 H- NW N - 6 8 6 EX = 9 EY = 21 32 SSX = 2.8 SSy = 12.8 Mx = 1.8 My = 4.2 b. Determine the significance of this correlation at alpha .05, two-tailed. Give the critical value and state whether or not there is a significant association between the two variables. (4 pts) c. Interpret the meaning of this correlation in terms of the problem. What is the direction of the relationship between family size and number of pets? (4 points) Click Save and Submit to save and submit. Click Save All Answers to save all answers.Question Completion Status: 6 6 EX = 9 EY = 21 32 SSX = 2.8 SSy = 12.8- MX = 1.8 My = 4.2 b. Determine the significance of this correlation at alpha .05, two-tailed. Give the critical value and state whether or not there is a significant association between the two variables. (4 pts) c. Interpret the meaning of this correlation in terms of the problem. What is the direction of the relationship between family size and number of pets? (4 points) d. Calculate the slope and Y-intercept for these data and use them to predict the number of pets for a family with 2 children (X = 2). (3 points) For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). DiNy TTT Arial 3 (12pt) Words:0 Path: p Save Click Save and Submit to save and submit. Click Save All Answers to save all answers.248 Summer 21 X Bb 14.10 Beyond the linear correla X C https://bbhosted.cuny.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_1924573_1&course_id=_2006001_1&content_id=_58526982 Remaining Time: 03 minutes, 09 seconds. Question Completion Status: QUESTION 1 Complete the Summary Table based on the SS and of computed above. (5 pts) SS df MS Between Treatments 652.16 Within Treatments 612.76 Total 1264.92 For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). T T T Arial 3 (12pt) DiNY Words:4 Path: p 3 poin QUESTION 2 In Study 1, immune system function of 35 students was assessed at the beginning of the semester and again during finals week. In Study 2, subjects were randomly assigned to take Vitamin C or a placebo' and the number of colds was measured. These designs are: O a. related, related Save All Answers Save and b. related, independent Click Save and Submit to save and submit. Click Save All Answers to save all answers.assigned to take Vitamin C or a placebo and the number of colds was measured. These designs are: O a. related, related b. related, independent O c. independent, independent O d. independent, related QUESTION 3 2 points Save Ans An experiment was done to test whether the volume of background noise would affect the number of errors people made doing a boring memory task. In the data below higher scores indicate more errors (a higher error rate). Complete the ANOVA to test for differences among the three groups. High (loud) Medium Low (soft) M = 65.5 M = 61.5 M=48.25 n = 5 n = 5 n = 5 State the hypotheses and in sentences. 3 points Saved QUESTION 4 The results of a two-factor analysis of variance produce df - 2, 24 for the F-ratio for factor B. Based on this information, how many levels of factor B were compared in the study? O a. 25 O b. 3 O c. 24 Save All Answers Save and Submit Click Save and Submit to save and submit. Click Save All Answers to save all answers. DD A F12 DII FTO FB FO. 20 888 F6 F7 F5 F3 F4 esc O
