This biostatistics assignment solution analyzes data related to hand grip strength and hypertension among grandparent carers. It addresses several key questions, including calculating confidence intervals for average grip strength, testing for significant differences, and performing hypothesis tests using t-tests and non-parametric tests like the Wilcoxon test. The assignment also explores the proportion of grandparent carers with hypertension, calculates confidence intervals for the difference in proportions between males and females, and determines the minimum sample size required to detect significant clinical differences. Furthermore, the solution includes the calculation of the standard deviation of hand grip and the impact of confidence interval size on the required sample size. The assignment references relevant statistical methods and provides interpretations of the results, including p-values and confidence intervals, using chi-square tests and calculations for minimum sample sizes.