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. does there appear to be a difference?
male: 69 98 52 97 79 82 57 93 53 62 64 58 58 70 76
female: 70 92 91 95 85 77 86 74 87 71 82 90 73 72 81
find the means.
the mean for males is (square) beats per minute and the mean for females is (square) beats per minute.
(type integers or decimals rounded to one decimal place as needed.)

Explanation:

Step1: Calculate sum of male pulse - rates

Sum of male values: $69 + 98+52 + 97+79+82+57+93+53+62+64+58+58+70+76=1048$

Step2: Calculate mean for males

Number of male values $n = 15$. Mean for males $\bar{x}_m=\frac{1048}{15}\approx69.9$

Step3: Calculate sum of female pulse - rates

Sum of female values: $70 + 92+91+95+85+77+86+74+87+71+82+90+73+72+81 = 1206$

Step4: Calculate mean for females

Number of female values $n = 15$. Mean for females $\bar{x}_f=\frac{1206}{15}=80.4$

Answer:

The mean for males is $69.9$ beats per minute and the mean for females is $80.4$ beats per minute.