40 statistics questions

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Exercise 19: Understanding Pearson Chi-Square

Questions to Be Graded

Name:

Class:

Date: 26-07-2020

1: According to the relevant study results section of the Darling-Fisher et al. (2014) study, what variables are reported to be statistically significant?

Answer: .

2: What level of measurement is appropriate for calculating the χ2 statistic? Give two examples from Table 2 of demographic variables measured at the level appropriate for χ2.

Answer: .

3: What is the χ2 for U.S. practice region? Is the χ2 value statistically significant? Is the p value accurately expressed for this variable? Provide a rationale for your answer.

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.

Answer: .

5: Is there a statistically significant difference for practice setting between the Rapid Assessment for Adolescent Preventive Services (RAAPS) users and nonusers? Provide a rationale for your answer.

Answer: .

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

Answer: .

7: Should the null hypothesis for provider age in years developed for Question 6 be accepted or rejected? Provide a rationale for your answer.

Answer: .

8: Describe at least one clinical advantage and one clinical challenge of using RAAPS as described by Darling-Fisher et al. (2014).

Answer:

9: How many null hypotheses are rejected in the Darling-Fisher et al. (2014) study for the results presented in Table 2? How many null hypotheses were accepted? Provide rationales for your answers.

Answer: .

10: A statistically significant difference is present between RAAPS users and RAAPS nonusers for U.S. practice region, χ2 = 29.68. Does the χ2 result provide the location of the difference? Provide a rationale for your answer.

Answer: .

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s_name: Amanda
sclass: Statistics