Statistics PSY302 Quiz Chapters 16 & 17

1. Alpha α is also known as: A.The null hypopthesis B.Chi Square C.The significance level D.The Analysis of Variance E.B and D

1. Alpha α is also known as: A.The null hypopthesis B.Chi Square C.The significance level D.The Analysis of Variance E.B and D

2. The ____ tells us the likelihood of getting a value as high as the test statistic by chance. null hypothesis margin of error P-value sampling distribution confidence interval

2. The ____ tells us the likelihood of getting a value as high as the test statistic by chance. null hypothesis margin of error P-value sampling distribution confidence interval

3. It the p-value is ______, then we say the data are statistically significant. Equal to the mean as small as or smaller than α Greater than the obtained statistic Larger than alpha greater than.05

3. It the p-value is ______, then we say the data are statistically significant. Equal to the mean as small as or smaller than α Greater than the obtained statistic Larger than alpha greater than.05

4. Which of the following graphs could be a t- distribution? a)Plot A b)Plot B c)Plot C

Which of the following graphs could be a t- distribution? a)Plot A b)Plot B c)Plot C

4. We use t scores when: 1.We want to talk about values rather than a claim about the relationship 2.We want to predict the value 3.The population standard deviation is unknown 4.We are concerned about chance 5.We have categorical data

4. We use t scores when: 1.We want to talk about values rather than a claim about the relationship 2.We want to predict the value 3.The population standard deviation is unknown 4.We are concerned about chance 5.We have categorical data

5. The proper T distribution is decided by: 1.The P-value 2.The significance level 3.The confidence interval 4.Degrees of freedom 5.Square root of N.

5. The proper T distribution is decided by: 1.The P-value 2.The significance level 3.The confidence interval 4.Degrees of freedom 5.Square root of N.

6. To compare the responses to the two treatments in _____ design, apply the one-sample t procedures to the observed differences. 1.P-value 2.significance level 3.confidence interval 4.Degrees of freedom 5.Matched pairs

6. To compare the responses to the two treatments in _____ design, apply the one-sample t procedures to the observed differences. 1.P-value 2.significance level 3.confidence interval 4.Degrees of freedom 5.Matched pairs

7. Do these data show if the average score on music is different from that for flower. This would be a _____ hypothesis. A.One-tail B.Two-tail C.Both of the above D.Neither of the above

7. Do these data show if the average score on music is different from that for flower. This would be a _____ hypothesis. A.One-tail B.Two-tail C.Both of the above D.Neither of the above

8. A t-test comparing flower trvia to music trivia would require a _____t-test. A.Matched Pairs B.One-sample C.Independent Samples

8. A t-test comparing flower trvia to music trivia would require a _____t-test. A.Matched Pairs B.One-sample C.Independent Samples

9. A Z score of.50 means 1.50 points above the average of the sample 2.Way, way above average 3.One half a standard deviation above the mean 4.All of the above

9. A Z score of.50 means 1.50 points above the average of the sample 2.Way, way above average 3.One half a standard deviation above the mean 4.All of the above

10. Degrees of freedom is determined by: 1.The variance 2.Sample size 3.The square root of n 4.T distribution 5.The null hypothesis

10. Degrees of freedom is determined by: 1.The variance 2.Sample size 3.The square root of n 4.T distribution 5.The null hypothesis

Bonus: To these data show that students score higher on one quiz than the other? A.Yes B.No C.Can’t say

Bonus: To these data show that students score higher on one quiz than the other? A.Yes B.No C.Can’t say