Question 19 (Mandatory) (1 point) Using the following values. u = 50, M - 64, n = 121, SM = 5.8, a = .05, while conducting a one sample t test, what will be the decision for the null hypothesis? O retain the null hypothesis reject the null hypothesis O reject the alternative hypothesis O There is not enough information to answer this question. Question 20 (Mandatory) (1 point) A researcher wants to report the proportion of variance from a one-independent sample t test, however he notices that reporting Cohen's d will have a medium effect while reporting ,? will have a large effect. What is the reason for the difference in effect size? . 68.F Sunny F9 F8