In a study on the effect of caffeine on driving performance

In a study on the effect of caffeine on driving performance, researchers predict that those in the group given caffeine will exhibit poorer driving performance. The researcher is using a _________ hypothesis.

Question 41 options:

a)

Two-tailed

b)

One-tailed

c)

Non-Directional

d)

Bivariate

When a Type I error occurs you

Question 40 options:

a)

Cannot accept the alternative hypothesis

b)

Accept the null hypothesis

c)

Determine that p > .05

d)

Reject the null hypothesis

(-2x 3) + (-3 x 5) + 15   =

Question 39 options:

a)

+6

b)

-6

c)

36      

d)

0

What statistical test would quickly tell if there were a significant different attributed to three or more levels of an independent variable?

Question 38 options:

a)

Chi Square

b)

ANOVA

c)

Correlation \"r\"

d)

T-test of the differences

In a study on the effect of caffeine on driving performance, researchers predict that those in the group given caffeine will exhibit poorer driving performance. The researcher is using a _________ hypothesis.

Question 41 options:

a)

Two-tailed

b)

One-tailed

c)

Non-Directional

d)

Bivariate

If you have two groups to compare, and you have categorical dependent variable data, you should use the __________ statistic.

Question 43 options:

a)

T-test

b)

Pearson “r”

c)

Chi Square

d)

ANOVA or F Test

Save

Question 44 (8 points)

What statistic would determine if there were a significant XY relationship between two variables?

Question 44 options:

a)

CHI square

b)

T-test

c)

F test

d)

Pearson \"r”

	a) Two-tailed
	b) One-tailed
	c) Non-Directional
	d) Bivariate

Solution

1) In a study on the effect of caffeine on driving performance, researchers predict that those in the group given caffeine will exhibit poorer driving performance. The researcher is using a _________ hypothesis.

Ans: One - tailed test

2) When a Type I error occurs you

Ans: Reject the null hypothesis

3) (-2x 3) + (-3 x 5) + 15   =

Ans: -6

4) What statistical test would quickly tell if there were a significant different attributed to three or more levels of an independent variable?

Ans: Chi Square

5) In a study on the effect of caffeine on driving performance, researchers predict that those in the group given caffeine will exhibit poorer driving performance. The researcher is using a _________ hypothesis.

Ans: One - tailed test

6) If you have two groups to compare, and you have categorical dependent variable data, you should use the __________ statistic

Ans: T-test

7)  What statistic would determine if there were a significant XY relationship between two variables?

Ans: T-test