Question

QUESTION 1: PART A. Multiple Choice: In an effort to project toilet paper needs, city mayors ask representative households to report the number of rolls of toilet paper per house. This survey is conducted in San Diego, Los Angeles, Sacramento, and San Francisco. If we wanted to compare these groups in each pairwise manner, what would be the actual alpha we would be testing these at if we thought we were using alpha = 0.05? O <0.05 O 0.05 O 0.26 O 0.14 O 0.21 PART B. Multiple Choice: A research paper conducts an ANOVA and reports F2.57=5.25. If the number of subjects was equal across the groups, how many subjects were in each group? O O O O O O

Answer 1

A)

Here we are using a pairwise manner

For 4 cities

So for each city, we have pair so for 4 cities we have 6 pairs

So each time we have alpha = 0.05

So alpha we are 0.05^6

But in ANOVA the alpha would not change, it Wii same for all pairs.

Which would be 0.05

Answer:- 0.05

B) F 2,57 = 5.25

Number of subjects are equal accross the groups

In F value 2 is k-1 =2. K= 3 is number of treatment

57 = n-k is error degree of freedom

n-3= 57

n = 60

Total 60 subjects. & 3 groups.

60 equally distributed in each group

So 60/3 = 20

Answer:- 20