Anova

Question 1

Analysis of variances is abbreviated as…

Answer 1

ANOVA

Question 2

Anova is used when you have…

Answer 2

A quantitive dependent variable and a categorical independent variable with 3 or more values

Question 3

If you are evaluating differences between a drug and placebo then…

Answer 3

Techniques from the review material are commonly use d

Question 4

An anova test contains…

Answer 4

A global test and the detailed tests for the individual values of the independent variable

Question 5

In anova as with other statistical tests…

Answer 5

Ho is stated as the case where there are no differences and HA is what we wish to see from the data

Question 6

The risk of making a mistake is…

Answer 6

Alpha

Question 7

If an independent variable has levels A B and C… what are Ho and Ha

Answer 7

Ho: mu(A)=mu(b)=mu(c)
Ha: at least one of them is different

Question 8

If you are given a problem stating that the probability that Cathy will be promoted is 50% and the probability that John will be promoted is 60% then this is obviously wrong since the two probabilities add up to more than 1.0

Answer 8

False

Question 9

Telling someone to give 100% is a motivational technique that demonstrates a clear understanding of quantitative reasoning

Answer 9

False

Question 10

The probability symbol for intersection is a U

Answer 10

False

Question 11

In genera, if we evaluate Pr (A or B)= Pr (A) + Pr(B) then we

Answer 11

Double counted Pr (A and B)

Question 12

On a single flip of a coin, the events (lands heads up and tails down) are

Answer 12

Disjoint

Question 13

If I have a gold coin and a silver coin, the events (tail on gold) and (heads on silver) are

Answer 13

Independent

Question 14

For the events that are (independent;disjoint), the probability of intersection is

Answer 14

The product of the individual events; zero

Question 15

If you execute a mean comparison test for drug X vs. drug Y and drug x vs drug z with the same data with an alpha of 5% each, the overall risk of making a mistake will be

Answer 15

50% larger than 5%

Question 16

The worst situation we could see in the data if we want to have significant results is

Answer 16

The averages for each of the drugs are close to each other and the data points for each of the drugs are far from their averages

Question 17

To reject ho, we want

Answer 17

MSw to be small and MSb to be large

Question 18

A small value for F will tend to lead to a

Answer 18

Large p value and therefore not reject Ho for Ha