As a developmental psychologist, you are interested in changes that occur throughout the lifespan. One area of research you're looking into is depression and aging. You want to find out if older Americans are more depressed than middle aged Americans. You know the average score on a standardized depression test for middle aged (40-60) Americans is =40. You collect a sample of n 40 older Americans, over the age of 70. You administer the standardized depression test to your sample and get a mean score of M-44.5, with a standard deviation of s=11.37. Will you retain the null hypothesis, reject the null and accept the alternative, or do you need more information? follor sdl Ignition Isnolezslong Hypotheses: Information: Decision: Ho: M 40 air li Isawov Aer Of tod s=11.37 sdela dunsbi bos B. Reject the null Alpha: .05 n=40 C. Not enough info Critical test statistic: (@)noiger Issuno ordf fedel bas nohudherb sde rbisde Culdes Obtained test statistic: Cohen's d: 72 : APA Conclusion Statement: )-oneulele last orll slugmoo bus eisb alguide mussido . 9 qs12 .() company signne .(22) esusupe To mue .(M) nesm olqube runiwolfe] or animalsb (Ge) to19 bisbasta bommiles bas (2) tohisivsb bobrussia signage SHOW WORK! nojpulanos & Sin / d gate