Posted: February 21st, 2023
Biostatistics essay
QUESTION 1
1. How do single sample analyses differ from paired sample analyses?
QUESTION 2
1. How do we know when it is appropriate to perform parametric or nonparametric methods of analysis for continuous and categorical dependent variables? Be specific.
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QUESTION 3
In the paired samples t-test, what does μd represent? What role does that value have in the determination of difference?
QUESTION 4
1. What is the difference between a Type I Error and a Type II Error? How is the risk of committing a Type I or Type II Error influenced by confidence level?
QUESTION 5
What does alpha (α) represent in the context of confidence levels?
QUESTION 6
1. SPSS: Approximately 12% of adults in the United States have contracted Herpes Simplex Virus-2 (HSV-2). Using the NHANES dataset, determine whether the proportion of individuals within our sample differs from the overall population.
QUESTION 7
1. SPSS: Using the Class Data dataset, create a graph that shows the proportion of each response regarding why the respondents have not received the HPV vaccine.
QUESTION 8
1. SPSS: It is generally understood/believed that 2000 calories is the 'recommended dietary intake.' Using the Food Intake dataset, determine whether the calorie intake for our sample (D_FENG) differs from the recommended amount.
QUESTION 9
1. SPSS: Using the Class Data, create a frequency table for normal alcohol consumption (when they consume alcohol).
QUESTION 10
1. Using the frequency table from the previous question:
How many respondents indicated that they consumed less than three drinks?
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What proportion indicated that they consume five or more drinks?
What percentage reported consuming more than one drink?
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QUESTION 11
1. SPSS: Using the MSA Crime Data, determine whether there was a difference in aggravated assault rates between 1970 and 1980.