StatCrunch Highlights http://www.statcrunch.com/ Collect - Calculate - Communicate en-us More new options for multiple regression http://www.statcrunch.com/5.0/viewresult.php?resid=869493 You can now add interactions to regression analyses and center them if you like! New options for multiple regression http://www.statcrunch.com/5.0/viewresult.php?resid=868666 StatCrunch now has a number of new features for multiple regression. You can now save standard errors and confidence intervals for both mean response and individual predictions. Also, you can study leverage/influence by saving studentized residuals, Cook's distance and DFFITS. You and your mate http://www.statcrunch.com/5.0/survey.php?surveyid=219&code=ZRPSI Tell us about your height and how you feel about the ideal height of your spouse/mate! Responses to physical fitness survey http://www.statcrunch.com/5.0/shareddata.php This data set represents the results of StatCrunch survey administered between September 22nd, 2009 and October 2nd, 2009. Respondents provided the number of hours per week (Hours) that they exercise each week and the number of days per week (Days) that they exercise. Respondents also stated whether or not they were gym members (Gym), the type of exercise they do (Type - Cardio, Strength, Both or Neither), their age (Age) and their gender (Gender). Take a sample from StatCrunchU http://www.statcrunch.com/5.0/statcrunchu.php StatCrunchU is a virtual population of 46,000 students that you and your students can sample from. StatCrunchThis http://www.statcrunch.com/bookmarklet/ StatCrunchThis allows both you and your students to easily analyze data on the Web. This tool works with data in tables and Google Spreadsheets.