What is the probability of rolling first an odd number, then an even number with one fair die?

Question 1 options:

	1/2
	1/3
	1/4
	1/6

Question 2(1 point)

Statistical tests that make assumptions about the underlying distributions are called:

Question 2 options:

	Regression
	Parametric tests
	Non-parametric tests
	Error analyses

Question 3(1 point)

A study in which a set of patients are tested for pain level before and after being given a new pain medication would use which test?

Question 3 options:

	Two Sample Z test
	Independent t-test
	Dependent t-test
	Regression

Question 4(1 point)

A nurse researcher studied the effect of biofeedback on blood pressure. For this study, she measured blood pressure on subjects, taught them biofeedback techniques, then re-measured blood pressure on the same group of patients. Which t-test would be most appropriate for this design?

Question 4 options:

	Independent groups t-test
	Dependent groups t-test
	One-sample t-test
	Pearson's correlation coefficient

Question 5(1 point)

If a researcher accepts a null hypothesis when that hypothesis is actually false, he has committed:

Question 5 options:

	a type I error
	a type II error
	a type III error
	no error

Question 6(1 point)

In inferential statistics, the objective is to determine how probable it is that:

Question 6 options:

	The alternative hypothesis is true.
	The null hypothesis is true.
	The alternative hypothesis is false.
	The null hypothesis is false.

Question 7(1 point)

What does it mean if your test result is "statistically significant"?

Question 7 options:

	You have proved your research hypothesis.
	You have accepted the null hypothesis.
	Your result is clinically significant.
	It is unlikely that the results occurred by chance alone.

Question 8(1 point)

A researcher wouldrejecta null hypothesis if:

Question 8 options:

	The test statistic was greater than the critical value
	The test statistic was less than the critical value
	The P value was 0.55
	The P value was greater than 0.05

Question 9(1 point)

The area of a sampling distribution beyond which the null hypothesis is rejected is known as the:

Question 9 options:

	Sampling region
	Directional hypothesis
	Critical region
	Degrees of freedom

Question 10(1 point)

What is the probability of rolling an odd number on a fair die (singular of dice) in one roll?

Question 10 options:

	1
	1/2
	1/3
	1/6

Question 11(1 point)

When the alternative hypothesis states that the difference between two groups can only be in one direction, we call this a:

Question 11 options:

	One-tailed test
	Bi-directional test
	Two-tailed test
	Non-parametric test

Question 12(1 point)

The hypothetical result of an infinite sample from a given population and calculating of some statistic from those infinite samples is a:

Question 12 options:

	Sampling distribution
	Sampling error
	Standard error
	Standard sample

Question 13(1 point)

The smaller theSEM,

Question 13 options:

	the larger the mean
	the smaller the value of the test statistic
	the more confidence we have that the estimates from the sample include the population value
	the less confidence we have that the estimates from the sample include the population value

Question 14(1 point)

A range of values estimated to have a high probably of containing the population value is called:

Question 14 options:

	Point estimate
	Standard error of the mean
	Confidence interval
	Standard deviation

Question 15(1 point)

Nurse researchers hypothesized that the use of therapeutic touch would reduce anxiety levels in pre-op hip replacement patients. The null hypothesis would be:

Question 15 options:

	Therapeutic touch reduces anxiety levels in pre-op hip replacement patients.
	Therapeutic touch does not reduce anxiety levels in pre-op hip replacement patients.
	Therapeutic touch reduces 25% of anxiety levels in pre-op hip replacement patients.
	Some other therapy reduces anxiety levels in pre-op hip replacement patients.

Question 16(1 point)

A negative standard score (z score) means that:

Question 16 options:

	the individual data value is equal to than the mean
	the individual data value is more than the mean
	the individual data value is less than the mean
	the z score is expressed in units of measure

Question 17(1 point)

Level of significance is symbolized by:

Question 17 options:

			s

Question 18(1 point)

In medical statistics, we general set the level of significance at:

Question 18 options:

	0.01
	0.05
	0.10
	0.50

Question 19(1 point)

If a researcher rejects a null hypothesis when that hypothesis is actually true, he has committed:

Question 19 options:

	a type I error
	a type II error
	a type III error
	no error

Question 20(1 point)

The Central Limit Theorem states:

Question 20 options:

	The smaller the standard error of the mean, the closer it is to the population mean.
	The mean of a sampling distribution of means is equal to the population mean.
	The smaller the sample size, the closer the sample mean approximates the population mean.
	A sample with a larger standard of error of the mean still has a mean that approximates the population mean.

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