State for each of the following whether or not we should use a "One-sample's T test", an "Independent T test", or a "Paired test".

1. To assess the differences between the average IQ of Californians with that of a sample of 150 individuals from Riverside California.

2. To assess whether the PE scores of a group of high-school girls improved after they started consuming breakfast.

3. To examine the differences in-terms of the headache scores between those receiving Advil vs those receiving Tylenol.

4. To compare two groups of people; group 1 with college students and group 2 with their matched best friends.

Q10.Table below displays the pessimistic worldview scores of a group of 16 students (9 pts).

Gender	Pessimistic Worldview
1	90
1	95
2	87
1	89
2	83
2	87
2	90
2	99
1	82
1	88
1	84
2	95
2	88
1	90
1	79
2	90

First create 2 variables on SPSS; one named "Gender" and one named "Scores". Make sure to create the codes/values for "Gender" variable ("1" for Male and "2" for Female). Copy and paste the scores from the table under "Pessimistic Worldview" to the SPSS file.

Step 1: Conduct normality analysis; can we assume data for both genders to be normally distributed? Copy and paste (or screen shot) the box plot to show whether or not the data is normally distributed (3 pts) (hint; the figure should have 2 box plots).

Conduct the analysis to show whether or not homogeneity of variances could be assumed. Which test did you compute? What is its P value? What does that mean? (hint; I am not asking for the P value of the t test ; I am asking for the P value of the test that examines equal variances) (2 pts)

Step 3: Conduct the independent T test analysis. Is there a significant difference in the scores of the pessimistic worldview between males and females? How did you come up with this conclusion? (2 pts)

Step 4: Copy and paste the table with the t value, degrees of freedom, and the P value. Do not provide me with more than one table (1 pt).

Step 4: Compute and interpret the Cohen's D from SPSS (1 pt).

Q11. Below you will find the quiz grades of students at Highgrove elementary 2^nd graders. We hypothesize that the mean quiz grade of the students is higher than the average grade of the students at the entire school (which equals 15.5). Results of the sample are shown in the table below (6 pts):

Grade

12

20

11

10

13

19

17

16

11

10

15

12

19

13

20

9

15

19

15

13

14

19

9

17

20

15

20

12

1. What are 3 assumptions you make before you perform the statistical test? List them(1 pt)

Normality,

1. What test do we apply here to test if your hypothesis were true? (1 pt)
2. Copy and paste the generates table from SPSS for the hypothesis testing (the one that includes the P value, T test, etc) (2 pts).
3. Make the right conclusion regarding whether or not mean of your sample is different from that of the entire school. Explain (2 pts)

use spss