#### What type of measurement can be used to measure the following variables: age in years, pain scale score, and blood type?

Age in years: _________________ [ONE POINT]

Income level [low, medium, high]: ____________________________ [ONE POINT]

Blood Type: ______________________ [ONE POINT]

Temperature: ________________________ [ONE POINT]

2. What type of statistics (mention all possible statistics) can be used to describe the variables: age in years, pain scale score, and blood type?

Age in Years: _________________ [ONE POINT]

Pain Scale Score: ____________________________[ONE POINT]

Blood Type: ______________________[ONE POINT]

3. What is Type II error? Give example [TWO POINTS]

4. Does a set of scores with most of its values above the mean have a negatively or positively skewed distribution? Provide a rationale for your answer. [ONE POINT]

5. t-statistics = -4.5 and p-value=0.04 describe the difference between women and men for mental health score.

5a. if alpha is set to 0.05, is the p-value of 0.04 statistically significant? [ONE POINT]

5b. in a sentence, interpret the p value of 0.04. Provide a rationale for your answer [ONE POINT]

6. What is a Type I error? Give example [TWO POINTS]

7. The following list represents the number of nursing students enrolled in a particular nursing program between the years of 2001 and 2007, respectively: 510, 564, 621, 540, 510, 610, 510. Determine the mean, median, and mode of the number of the nursing students enrolled in the above program between 2001 and 2007. Show your calculations. [THREE POINTS]

Mean =

Median =

Mode=

8. A study found that the correlation r value for the relationship between serum level of triglyceride and the length of stay in the hospital is 0.63 and p-value was 0.03.

8a. Interpret the r value of 0.63 [strength and direction] and provide a rationale for your answer. [ONE POINT]

8b. If alpha is set to be 0.05, is this r value of 0.63 and p-value of 0.03 statistically significant? [ONE POINT]

9. What is the statistical test (procedure) that is used to determine whether a significant difference exists between three or more group means? [ONE POINT]

A) t-test

B) ANOVA

C) Correlation coefficient

D) Mann Whitney U test

10. What type of hypothesis is represented by the statement women who smoke are as likely to have low-birth-weight babies as women who do not? [ONE POINT]

A) Alternative hypothesis

B) Non-directional

C) Research

D) Null hypothesis

. .

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