Question: Halle collected data on number of dates per month: 3, 2, 5, 3, 3, and 2. What is the range?
Answer Choices: A. 7
B. 3
C. 8
D. 9
Answer: B. 3
Question: Veronica collected the following scores for self-disclosure: 2, 4, 7, 2, 9, 6. What is the mean?
Answer Choices: A. 6
B. 6.5
C. 5
D. 30
Answer: C. 5
Question: In examining whether there is a relationship between exercise frequency and anxiety, the professor should use a:
Answer Choices: A. One-variable chi-square
B. Two-variable chi-square
C. T-test
D. Correlation
Answer: D. Correlation
Question: “Number of AE’s impact weekend joy” would be best characterized as a ______ tailed hypothesis.
Answer Choices: A. One
B. Two
C. Could be both
Answer: B. Two
Question: When the calculated value does not exceed the critical value, the researcher ______ the null and type ______ error is potential.
Answer Choices: A. Rejects; one
B. Rejects; two
C. Retains; one
D. Retains; two
Answer: D. Retains; two
Question: A researcher is testing the hypothesis: Community college transfer students differ in degree of motivation compared to those not attending. What test is used?
Answer Choices: A. One-variable Chi-Square
B. Two-variable Chi-Square
C. Correlation
D. T-test
Answer: D. T-test
Question: A professor believes that there is a relationship between exercise and anxiety levels. Given the information provided above, the H₁ and H₀ would be:
Answer Choices: A. One-tailed
B. Two-tailed
C. I never get these… they are the worst.
D. I think it has something to do with crossing the street.
Answer: B. Two-tailed
Question: Looking at fun level differences between bike owners and non-bike owners, the professor collects initial data. What is the test statistic needed to analyze this data?
Answer Choices: A. One-variable chi-square
B. Two-variable chi-square
C. T-test
D. Correlation
Answer: C. T-test
Question: When the calculated value meets or exceeds the critical value, the researcher ______ the null and type ______ error is potential.
Answer Choices: A. Rejects; one
B. Rejects; two
C. Retains; one
D. Retains; two
Answer: A. Rejects; one
Question: Variance = 49. What is the standard deviation?
Answer Choices: A. 10
B. 12
C. 15
D. 7
Answer: D. 7
Question: Correlation coefficient of determination = .48. What visual should Ricardo use?
Answer Choices: A. Pie chart
B. Scatterplot
C. Venn Diagram
D. Bar graph
Answer: B. Scatterplot
Question: Veronica collected the following scores for extroversion: 2, 4, 7, 2, 9, 6. What is the mode?
Answer Choices: A. 4
B. 9
C. 2
D. Bimodal
Answer: C. 2
Question: Age and self-disclosure are positively related is best described as a ______ tailed hypothesis.
Answer Choices: A. One
B. Two
C. Could be both
Answer: A. One