Author Question: A researcher used a sample of n = 60 individuals to determine whether there are any preferences ... (Read 69 times)

vicky · **on:** Jun 20, 2018

A researcher used a sample of n = 60 individuals to determine whether there are any preferences among four brands of pizza. Each individual tastes all four 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?

A) greater than 7.81
B) less than 7.81
C) less than 5.99
D) between 5.99 and 7.81

Question 2

What is the sample variance and the estimated standard error for a sample of n = 9 scores with SS = 72?

A) s2 = 9 and sM = 3
B) s2 = 9 and sM = 1
C) s2 = 3 and sM = 3
D) s2 = 3 and sM = 1