Psychology CC 5 Week 3 Worksheet 6 Quiz

Psychology CC 5 Week 3 Worksheet 6 Quiz | chatbot las positas  community college

Question 1

n = __________

Question 2

Mean1 = __________________

Question 3

Mean2 = __________________

*Answer will be in tenths place.

Question 4

Calculate Standard Deviation of the Distribution of before and after difference scores  = ________________

*round to the thousandths place

Question 5

Calculate Standard Error of the Difference Between Means = ___________________

*round to hundredths place

Question 6

Calculate the t ratio = _____________________

*round to the thousandths place

Question 7

Should we use a one-tailed test or a two-tailed test?            

Question 8

What is the critical t (according to Critical Values Table)? ____________

*Look at the chart and report to thousandths place

Question 9

Based on the data, can you reject the null hypothesis (H0)?                      

·         Yes  

·         No 

Question 10

What is the variance for each group?       s12=__________  s22=__________  

·         163.76; 88.4  

·         88.4; 163.76  

·         188.96; 98.222  

·         98.222; 188.96

Question 11

Find Spooled first (at thousandths), then report the effect size (Cohen’s d): ______________

*round to thousandths place

Question 12

Based on the effect size and hypothesis testing, is Ultima effective at lowering depression?