<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:An investigator is measuring the blood calcium level in a sample of female cross country runners and a control group of sedentary females. If she would like to compare the means of the two groups, which statistical test should she use?? A: t-test, B: ANOVA Analysis of Variance, C: Linear regression, D: Chi-square test, E: F-test,  <response>: This is a question asking which statistical test should be used to compare the means of two groups - the blood calcium levels of female cross country runners versus sedentary females. Since there are only two groups being compared, the appropriate statistical test would be a t-test. ANOVA would be used if there were multiple groups being compared. Linear regression examines the relationship between variables, not group differences. Chi-square tests associations between categorical variables. The F-test compares variances.A: t-test 