Biostatistics Assignment 2: Statistical Analysis of Grip Strength Data
VerifiedAdded on 2022/11/22
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Homework Assignment
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This assignment solution analyzes a dataset related to grandparent carers, focusing on grip strength and hypertension. It includes calculations and interpretations of confidence intervals for grip strength, determining statistical significance. The solution tests hypotheses regarding grip strength differences between males and females using both t-tests and Wilcoxon tests. Further analysis involves testing the proportion of hypertension in grandparents using a Chi-squared test and calculating the confidence interval for the difference in proportions. The assignment also examines grip strength differences between dominant and non-dominant hands using a Wilcoxon sign rank test. Finally, it addresses sample size calculations for detecting differences in hypertension between males and females and determining the margin of error for grip strength measurements. The solution provides detailed steps, R Commander outputs, and conclusions for each analysis.
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