Applied statistics, statistics homework help

Exercise 19

1. According to the relevant study results section of the Darling-Fisher et al. (2014) study, what

categories are reported to be statistically significant?

2. What level of measurement is appropriate for calculating the χ 2 statistic? Give two examples

from Table 2 of demographic variables measured at the level appropriate for χ 2 .

3. What is the χ2 for U.S. practice region? Is the χ 2 value statistically significant? Provide a rationale

for your answer.

4. What is the df for provider type? Provide a rationale for why the df for provider type presented in Table 2 is correct.

5. Is there a statistically signifi cant difference for practice setting between the Rapid Assessment

for Adolescent Preventive Services (RAAPS) users and nonusers? Provide a rationale for your

answer.

6. State the null hypothesis for provider age in years for RAAPS users and RAAPS nonusers.

7. Should the null hypothesis for provider age in years developed for Question 6 be accepted or

rejected? Provide a rationale for your answer.

8. Describe at least one clinical advantage and one clinical challenge of using RAAPS as described

by Darling-Fisher et al. (2014).

9. How many null hypotheses are rejected in the Darling-Fisher et al. (2014) study for the results

presented in Table 2 ? Provide a rationale for your answer.

10. A statistically signifi cant difference is present between RAAPS users and RAAPS nonusers for

U.S. practice region, χ 2 = 29.68. Does the χ 2 result provide the location of the difference? Provide

a rationale for your answer.

Need to be completed by 5-12-17