Does contracting certain disease have different effects on the blood pressures of patients in different age groups? A study is conducted where four samples of patients from four different age groups are selected and their diastolic blood pressures (measured in mmHg) are recorded. Below are the statistics. n x S Sample 1 (with patients over 65) 18 95 11.5 Sample 2 (with patients between 45 and 65) 32 101 10.5 Sample 3 (with patients between 25 and 45) 26 90 11 Sample 4 (with patients below 25) 24 80.5 10.8 Assume the diastolic pressures of patients in each age group are normally distributed and that the four age groups had roughly the same variance in systolic blood pressures. Perform ANOVA to determine if there are significant differences among the average diastolic blood pressures of the patients in these age groups at a = 0.05