Name the three statistical characteristics of a statistical distribution Using the attached dataset ‘Data.xls’
- Name the three statistical characteristics of a statistical distribution
- Using the attached dataset ‘Data.xls’ file determine the mean and median of the variable ‘WeightFemale.’
- Using the attached dataset ‘Data.xls’ file determine the Standard Deviation and Variance of the variable ‘WeightMale.’
- _____ is a mathematical relation that assigns probabilities for all possible outcomes of a discrete random variable.
- The area under the curve (AUC) on a pmf histogram corresponds to a_ ___
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In a given population approximately 3 in 31 people carry a rear disorder. If five participants are selected at random what is the probability that two are carriers.
- Assume that approximately 40% of live births in a given population were defined as unintended. You take a SRS of 50 pregnant women from this population. T/F, the Normal approximation to the binomial can be applied under these conditions.
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True
B) False
8. Weight of a subset of men varies approximately according to a Normal distribution with mean 176.9 pounds and standard deviation 7.1 pounds. What proportion of these men are at least 183 pounds.
9. Consider a SRS of n=23 in which the mean is 10.3 and standard deviation of 3.2. For a population mean of 8.6 determine the Z statistic.
10. From the Z statistic calculated above, the probability of selecting a SRS with mean of 10.3 is:
11. A study takes a SRS from a population of full-term infants. The standard deviation of birth weights in this population is 2 pounds. Calculate 90% confidence interval for μ for a sample in which n= 63 and mean = 7.3. ___ to ________.
12. Using the attached dataset ‘Data.xls’ report the correlation between the variables ‘TriglyceridesFemale’ and ‘CholesterolFemale.’
13. Using the attached dataset ‘Data.xls’ file perform regression analysis to explore the relationship between ‘AgeFemale ‘ and ‘WeightFemale.’ The p-value from this regression is:
14. Using the attached dataset ‘Data.xls’ perform an ANOVA to explore the relationship between the means of ‘TriglyceridesFemale’ and ‘TriglyceridesMale.’ Report the sum of squares between and Mean Square within. _____ and ____
15. Using the attached dataset ‘Data.xls’ file perform an ANOVA to explore the relationship between the means of ‘TriglyceridesFemale’ and ‘TriglyceridesMale.’ Report the sum of squares total and degrees of freedom total. ____ and _____
16. Using the attached dataset ‘Data.xls’ file, perform an ANOVA to explore the relationship between the means of ‘TriglyceridesFemale’ and ‘TriglyceridesMale.’ The p-value suggests that, at alpha = 0.05, we can:
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Reject the null hypothesis and conclude that there is no significant difference in the means between groups.
B) Reject the null hypothesis and conclude that there is a significant difference in the means between groups.
C) Reject the null hypothesis and conclude that there is a significant difference in the means between groups.
D) Reject the null hypothesis and conclude that there is no significant difference in the averages between groups.
17. In correlation and regression problems, the explanatory variable is called the "Exposure" variable, and the response variable is the "Dependent" variable.
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True
B) False
18. Nondifferential misclassification tends to:
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Overestimation or underestimation in risk
B) Bias results only toward the null
C) Bias results in either direction
D) None of the above
19. What is the value of the RR parameter when there is no association between the exposure and outcome?
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0
B) 0.25
C) 0.50
D) 1
E) 2
20. Using the attached Table ‘Anger and Heart Disease’ file, calculate incidence proportions for ‘Low’ anger level and ‘Moderate’ anger level.
21. Using the attached Table ‘Anger_HeartDiseaseTableFinalExamUS11’ calculate the odds ratio of experiencing heart disease in the ‘Low’ anger level compared to ‘Moderate’ anger level.
22. Using the attached Table ‘Anger_HeartDiseaseTableFinalExamUS11’ calculate the odds ratio of experiencing heart disease in the ‘High anger level compared to ‘Moderate’ anger level.
Deliverable: Word Document
