Stab22 midterm Notes.docx - Question 1: Typo for row 3 A B...

Question 1:
Typo for row 3
A) The cases are 759 married respondents
B) Variable = fairness of division of work around the house, categorical, nominal
C) Mode is 1: fair to both highest %
D) N= 759, 0.767(759) = 582 also change 76.7 to decimal and multiply correspondents
Question 2:
A) Mean = 27171(1) + 16761(2) + 1571(3) + 397(4)/ 45,900 = 1.46
B) Median = N= 45,900 (even data set) position of median is an average of N/2 and N/2 + 1.
45900/2 = 22,950 45900/2 +1 = 22,951
C) Right skewed: Data gets smaller from beginning to the end
D) For skewed distributions, most appropriate measure of center: Median, measure of
spread: IQR
Question 3:
A) (1x0.34) + (2x0.33) + (3x0.16) + (4x0.17) = 2.16
B) Position of median is 0.5 of data values
Question 4: Part B is conditional percentage
A) Response variable: Relationship between EDU success in live, Explanatory variable: Sex
of respondents.
B) 38/73 = 0.5205x100 = 52.05%
C) 73/7920 = 0.0092 in proportion multiply by 100 is = to 0.92 percent looking at marginal
values
D) Turn count into row percentage Find: conditional percent of strong agreement for male,