1) Which of the following does NOT represent circumstances covered by the binomial distribution:

a) Infected or not infected

b) Success and failure

c) Short, medium, or tall in height

d) Having a red or a blue shirt on

2) Goodness of fit tests are those that:

a) Compare an observed proportion to the mean population proportion

b) Compare an observed proportion to a sampling distribution for the null hypothesis

c) Compare an observed proportion to the maximum possible proportion

d) Compare an observed proportion to the population proportion

3) Let's say hypothetically that the probability that the pandemic bread you are baking is delicious (yes, no) is 0.75. What are the odds of the bread being delicious? (to one decimal place)

4) To use the normal approximation of the binomial distribution, the sample size must be:

a) np<5 and n(1+p)<5

b) 30 or more

c) np<5 and n(1-p)<5

d) np>5 and n(1+p)>5

5) You wish to test whether a person?s left ear is longer than their right. You measure ears for 20 individuals and conduct the correct test. Which of the following assumptions needs to be met?

a) A sample size of more than 20 individuals

b) A normal distribution for left ear length and right ear length

c) Non-random sampling

d) A normal distribution of the differences between left and right ear length

6) You have a data set on the proportion of cats that are grey in 30 populations. The data are not normal. What is likely a good transformation you could use on these data?

a) Log transformation

b) Cube-root transformation

c) Arcsine-square-root transformation

d) Reciprocal transformation