1) What are paired samples ?

a) Experiments where the sample size is limited to 2

b) Samples where every unit of analysis is measured twice and the average of the two becomes the new sample used for analysis

c) Samples where every unit of analysis is measured twice, forming two observations for each

d) Samples from populations with unequal variances

2) You run a one-factor ANOVA and find that the BSS (between group sum of squares) is much larger than the ESS ferrorwithin group sum of squares)This suggests that the groups :

a) are likely to have significantly different means b) are unlikely to have significantly different means

c) are likely to have identical means d) are equal to zero

3) You have collected responses for a survey on people's eating habit. One question asks the following :

rate your own eating habits on a scale of one to ten with ten being extremely healthy, and one being extremely unhealthy.

You want to test whether your target population eats on average healthy (>= 5)or unhealthy (ie < 5) . How many population parameters would be in your null hypothesis?

a) 2 b) 1 c) none - they null hypothesis would make a claim about the sample statistics, not the population parameter. d) 3

4) X is a variable measured on a ratio scale. Which is not a value of

a) 100 b) 62.282 c) -17 d) 999999

5) Given the following model formula for predicting child heights from the child's gender and the height of the parents, select the correct statement

height = 15.3 + 0.322mother + 0.406father + 5.23sexM

a) Fathers are, on average, taller than mothers

b) Male children are, on average, taller than female children

c) The effect of mother's height on children's height is half of the effect of the father's height

d) A parentless child is 15.622 inches tall