Dr. Penner thinks that she can predict a person’s success at a spatial task from

Question

Dr. Penner thinks that she can predict a person’s success at a spatial task from their Mental Ability Score (MAS). She asks 300 high-school students to complete the MAS (scores range from 10-50) and a series of spatial tasks (scores range from 0-15). She expects that with increased MAS high school students will be more successful at the spatial task. 1. What are the researcher’s independent and dependent variables? a. Independent=______________________________ b. Dependent=_______________________________ 2. What are the null and alternative hypotheses (use the appropriate symbols not words)? a. H0=__________________ b. H1=__________________ 3. What is the appropriate test for the researcher to use?__________________ 4. Why is that statistic appropriate? If applicable to the specific test: 5. What are the test’s assumptions? 6. What are the test’s df? 7. What is the appropriate critical value? 8. If the research obtains a test statistic of ____ , would the researcher retain or reject H0? 9. Should the researcher do any follow up tests or make any graphs/charts? 10. Interpret the findings in APA style

Explanation / Answer

Independent= Mental Ability Score (MAS)

Dependent=success at a spatial task

Ho: correlation =0

H1: correlation !=0

CORRELATION test should be used.

Test is appropriate as Dr. Penner thinks that she can predict a person’s success at a spatial task from their Mental Ability Score (MAS).So,we need to test correlation.

Assumption is that there is linear relationship between success at a spatial task from their Mental Ability Score (MAS).

df=300-2 =298

n is sample size

For rest of the part data is missing.

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