Dr. Hughes researches the pattern of vending machine use on campus. He has found

Question

Dr. Hughes researches the pattern of vending machine use on campus. He has found that two factors increase the use of vending machines (0-10) in college; one is time of the semester and one is time of day. He wants to determine if these two factors influence one another to form a more specific pattern of vending machine use. Dr. Hughes goes to several locations on campus to watch the use of vending machines. He records the time of day and the time within the semester. He later then transposes those times into groups (time of day 1=morning, 2=afternoon, 3=evening, 4=late night; time of semester 1=early, 2=late). 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=time of the semester and time of day

Dependent= the pattern of vending machine use on campus

Hypotjesis:

Ho: mean(time of semester)=Mean(time of day)

H1:mean(time of semester)!=Mean(time of day)

2 independent sample t,to be used.

Dr. Hughes wants to determine if these two factors influence one another to form a more specific pattern of vending machine use. Dr. Hughes goes to several locations on campus to watch the use of vending machines.SO, we have two different sample one is time of samester and other is time of day.So, 2 independent sample t,to be used.

tests assumptions is that two sample is independent and with population with equal variance.

df=n1+n2-2

n2=sample size of time of semester

n2=sample size of time of day

For rest part data is missing.

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