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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.
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?
What proportion indicated that they consume five or more drinks?
What percentage reported consuming more than one drink?
QUESTION 11
1. SPSS: Using the MSA Crime Data, determine whether there was a difference in aggravated assault rates between 1970 and 1980.
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