Question

listed below are pulse rates (beats per minute) from samples of adult males and females. find the mean and median for each of the two samples and then compare the two sets of results. does there appear to be a difference?
male: 68 81 54 96 86 82 63 88 52 73 54 90 56 75 77
female: 90 92 85 91 69 85 93 72 93 89 86 92 80 70 64
find the means.
the mean for males is beats per minute and the mean for females is beats per minute. (type integers or decimals rounded to one decimal place as needed.)

Explanation:

Step1: Calculate sum for males

Sum of male pulse - rates: $68 + 81+54 + 96+86+82+63+88+52+73+54+90+56+75+77=1125$

Step2: Calculate mean for males

Number of male data - points $n_m = 15$. Mean for males $\bar{x}_m=\frac{1125}{15}=75.0$

Step3: Calculate sum for females

Sum of female pulse - rates: $90 + 92+85+91+69+85+93+72+93+89+86+92+80+70+64 = 1241$

Step4: Calculate mean for females

Number of female data - points $n_f = 15$. Mean for females $\bar{x}_f=\frac{1241}{15}\approx82.7$

Answer:

The mean for males is $75.0$ beats per minute and the mean for females is $82.7$ beats per minute.