2:01 .Of LTE Practice calculating the... Q Steps for computing Standard Deviation: 1. Compute the mean a. 2. Subtract mean from each score a. X - I 3. Square the differences a. (X-[)2 4. Sum the Squares (add them). THIS IS YOUR SS. a. E(X-[)2 5. Get the average difference of scores from the mean (divide by the sample size). THIS IS YOUR VARIANCE - 62 a . E(X-u)2 - Use this for a population N b . E(X-u)2 - Use this for a sample N-1 6. Square root your variance - THIS IS YOUR STANDARD DEVIATION a. VSS/N = 0 Problem 1: X X - H (X-()2 10 5 3 9 5 8 3 U= E (X- H) 2 = E ( X- () 2 VSS/N = N = Problem 2: X X - H (X-()2 1 0= 5 ooo 0= n Dashboard Calendar To Do Notifications Inbox2:01 .Of LTE Practice calculating the... Q Problem 2: X X - H (X-()2 - 1 2 NO O 2 NO - 1 CO 3 A E (X- H) 2 = E ( X-() 2 VSS/N = N = 0= 5 ooo 0= n Dashboard Calendar To Do Notifications InboxA { Practicecalculatingthe.. Q & (0 Problem 3: A health psychologist is interested in best practices for weight loss and selected two samples (n = 6) and assigned the groups to different diet plans. The scores represent Ibs. lost on the diet plan. A. Calculate mean and standard deviation for each diet plan. We will use the calculation for a sample B. Based on your results, describe the differences in weight loss for the diet plans. Which one would you choose to try and why? Diet Plan A 4 p= X(X-p)2 = 2(X-p)2 VSS/N = Diet Plan B 6 il 2 b= S(X-p)2 = E(X-)2 VSS/N = E n 3 E N & Dashboard Calendar To Do Notifications Inbox