Question

Use the accompanying data set on the pulse rates (in beats per minute) of males to complete parts (a) and (b) below. Click the icon to view the pulse rates of males. a. Find the mean and standard deviation, and verify that the pulse rates have a distribution that is roughly normal. The mean of the pulse rates is beats per minute. (Round to one decimal place as needed.) 78 85 95 76 50 59 52 58 64 64 51 55 84 65 82 78 84 co 69 90 44 64 82 64 24 11 04 81 79 76 59 SC 65 66 66 68 65 59 74 51 51 81 80 60 85 89 73 61

Answer 1

Solni, @) From the table which We are given n = 42 and Exi=2936 We know that Exi 2936 Mean = 42 where Exi= sum of all pluse rate. Mean = 69 9048 x 69.9. The mean of the pulse rate is [199] beats ber Minute (6) Evalute Za X-4 if X= 32.6, M = 49.3,8=9.3, n=23 put all values in equation ③ Z = 32.6-49-3 9.3 /23 - 16.7 XV23 9.3 -80.0904 - 2.61188 ~ -8.61 9.3 Z = -8:6)] c) Find the integers that correspond to the given description fewer than 25 people we know fewer than means "up to"

to our answer is (A) O A. The integers up to 25 (d) Evaluate Z= X-M # / if x=65 M=74-9 ord o=2-3 but the value in equation 2 65-74.9 -4.30435 AM baim xal Z z = 9.3 - 4.30435 F - 4.30 Z= - 4.30