. Doctors believe that the average alcoholic drink consumption (0-10) has increa
ID: 3230208 • Letter: #
Question
. Doctors believe that the average alcoholic drink consumption (0-10) has increased in the past 30 years. Data from 1980 indicates that the average person consumes 1.78 alcoholic drinks per sitting. However, today the average is 3.67. The variance is not known for either data collection period. What are the researcher's independent and dependent variables?
What are the test's df?
What is the appropriate critical value?
If the research obtains a test statistic of 2.55, would the researcher retain or reject H0?
Should the researcher do any follow up tests or make any graphs/charts?
Interpret the findings in APA style:
Explanation / Answer
What are the test's df?
Answer : n - 1 = 30 - 1 = 29
What is the appropriate critical value?
Answer : 2.045 (at alpha = 0.05)
If the research obtains a test statistic of 2.55, would the researcher retain or reject H0?
Answer : Reject Ho, since t > tcrit.
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