Question 6

Match up thefollowing:

Question 6 options:

___	Rejection of H0 when H0 is false, ornot rejecting H0 when H0 is true
___	Rejection of H0 when H0 is true
___	The risk we are willing to take of a type 1 error, or the type 1 error rate
___	Failure to reject H0 when H0 is false

1.	Type 1 error
2.	Type 2 error
3.	Not an error
4.

Question 7

Match up thefollowing:

Question 7 options:

___	Test of this hypothesis requires 1-tailed test with lower reject region bounded by negative critical value
___	Test of this hypothesis requires 1-tailed test with upper reject region
___	Test of this hypothesis requires 2-tailed test with lower reject region bounded by negative critical value and upper reject region bounded by positive critical value
___	The power of a test = P(rejecting H0|H0false)
___	The probability of a type 2 error
___	Reject H0

1.
2.	1 -
3.	pvalue <
4.	H0: 0
5.	H0: 0
6.	H0: = 0

Question 8

Match the rules for rejecting H0 at the right to the following tests

Question 8 options:

___	One-tail test with lower reject region
___	One-tail test with upper reject region
___	For any test hypothesis, ANOVA, or Chi Squared, this rule for rejecting H0 always applies.
___	Two-tail test with lower and upper reject regions

1.	test statistic > positive critical value
2.	test statistic < negative critical value
3.	test statistic outside interval (negative critical value, positive critical value)
4.	pvalue <

Question 9

Match problems to procedures.

Question 9 options:

___	Test size C battery mean life is at least 25 hours.
___	To test that a gasoline additive increases mileage, we compute mpg with additive minus mpg without additive for each car. If the mean of the differences is positive enough, action will be required to implement the additive.
___	Given weights of 31, 29, 26, 33, 40, 28, 30, and 25, at = 0.05 test that the population mean is 35.
___	An effective vaccine would reduce the proportion of exposed persons contracting a disease. A pharmaceutical company wants to test the effectiveness of a new vaccine in preventing a certain disease. It is expected that 40% of unvaccinated exposed people will contract the disease. A group of 48 exposed persons volunteered to be vaccinated. Later, two of the volunteers contracted the disease. Test H0: 0.40 (vaccine ineffective) at = 0.01.
___	Run times (msec) of a new phone app developed by GotYourGP and established competitor WeTrackYou.Inc. are logged in a data file. At = 0.05, are the run times of GotYourGP and WeTrackYou.Inc comparable?

1.	1-tailed test of proportion with negative critical value
2.	2-tailed test of mean with both negative and positive critical values
3.	1-tailed test of mean with negative critical values
4.	1-tailed test of paired-data with positive critical value
5.	2-tailed test of means of 2 independent populations

Question 10

Match problems to procedures.

Question 10 options:

___	Do 2-way table classification labels matter?
___	A multinomial probability distribution describes the distribution of counts across multiple levels of a variable. For each level of a variable, which is common to multiple populations, are the distributions the same.
___	Does the data validate the normal probability distribution assumption?
___	Data were gathered in an experiment comparing the effects of three insecticides in controlling a certain species of parasitic beetle. Each observation represents the number of such insects found dead in a certain fixed area treated with an insecticide.

1.	ANOVA
2.	Chi-square test of homogeneity
3.	Chi-square test of independence
4.	Chi-square test of goodness of fit