7. A chi-square test for goodness of fit is used to examine the distribution of individuals across four categories, and a chi-square test for independence is used to examine the distribution of individuals in a 32 matrix of categories. Which test has the larger value for df? I'd like to see how to do this (the math behind it) 8. A sample of 100 people is classified by gender (male/female) and by whether or not they are registered voters. The sample consists of 80 females and 20 males, and has a total of 60 registered voters. If these data are used for a chi-square test for independence, what is the total number of females for the expected frequencies? voters Not voters Male Female 20 80 60 40 9. A researcher obtains a Pearson correlation of r = 0.45 for a sample of n = 20 participants. For a two-tailed test, what decisions do you make for alphas of .05 and .01? @level 0.01 CV= @level 0.05 CV= Since r=0.45, and the CV at @level 0.05 is 6. A researcher used a sample of n = 60 individuals to determine whether there are any preferences among five brands of pizza. Each individual tastes all five brands and selects his/her favorite. If the data are evaluated with a chi-square test for goodness of fit using = .05, then how large does the chi-square statistic need to be to reject the null hypothesis? @level0.05 with a df of 4, chi-squared critical value = _____________ Chi-squared stat should be higher that ____________ to reject the null Also, how do I find the CV of a chi squared? Chi Squared in SPSS (15 points this section) You have a treatment study in which 12 people -5 men and 7 women get CBT, 15 people7 men and 8 women get meds, and 18 people -11 women and 7 men get treatment as usual (TAU). You want to know whether you have the same numbers of men and women in each treatment group. The key to doing this problem is to create two variables: one variable for gender, and one variable for type of treatment. Each row represents a person. Using SPSS test at the .05 level of significance. Hint: Assign men the value 0 and women the value 1 as you set up your data file... 1)Enter data and provide screenshot of data (5 points)