## Question

###### A Moving to the next question prevents changes to this answer. Question 1 Given the data...

A Moving to the next question prevents changes to this answer. Question 1 Given the data set, calculate a two-tailed t-statistic with a p = 20. Use a = .05. 25, 21, 23, 29, 26 df = t-critical (3 decimals for t-critical) = I M SM- t-value = Conclusion? (type "retain the null" or "reject the null"):

Question 2 If sp2 is = 81, n = 9 and 522 = 27, n2 = 9, what is s(M1 - M2)? O a 12 O b. 4.73 O c. 6 3.46

Question 3 If we obtain anr 2 of 0.09, what can we expect our Cohen's d to be? .8 .5 Cannot be determined. 2 O

Question 4 If our t-statistic is 3.00, and our df = 10, what is our percentage of the variance explained ? Round to the nearest whole percent.

Question 5 If our n=8, what is the t-critical value of our hypothesis test, two-tailed, a = .05? O a. 1.895 2.306 Ob. Oc? 2.365 O d. 1.860

Question 6 Given that SS1 = 25 and SS2 = 36, and df = 4, and df2 = 5, what is the value of the pooled variance? O a. 6.78 Ob.3.1 Oc 26 O d. 13,5

Question 7 The data set below was obtained from one group of individuals. Calculate a two-tailed t-statistic for a repeated measures design. Use a - .05. Treatment 1: 3,0, 1,4,2 Treatment 2: 8, 11, 9, 7,5 df- t-critical (3 decimals for t-critical) MD- SMD t-value Conclusion? (type "retain the null" or "reject the null");

## Answers

M = 5 Ans: D df n-1= 5-1 = =74 t crotical at df = 4,2 = 0.05 212.777 25+21+23+29 +26 124 24.8 5 SM {(x-x) (25-24.8) + - + /26-24,8² 3.0332 5-) M-u 24.8-20 Sulin = (3.54 3.033215 sence Este, defect Ho. de Refect null hypothesis. 2 2 n-1 t-value = n.

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