For a data set of thepulse rates for a sample of adult females, the lowest pulse rate is 38 beats per minute, the mean of the listed pulse rates is x overbarequals78.0 beats per minute, and their standard deviation is sequals25.3 beats per minute.

COMPLETE QUESTION:

For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 32 beats per minute, the mean of the listed pulse rates is x overbarequals74.0 beats per minute, and their standard deviation is sequals14.8 beats per minute.

a. What is the difference between the pulse rate of 32 beats per minute and the mean pulse rate of the females?

b. How many standard deviations is that [the difference found in part (a)]? c. Convert the pulse rate of 32 beats per minutes to a z score.

d. If we consider pulse rates that convert to z scores between minus2 and 2 to be neither significantly low nor significantly high, is the pulse rate of 32 beats per minute significant?

Answers:

a) 42 b) 2.838 c) -3.07 d) The pulse rate is significantly low.

Step-by-step explanation:

The explanations are clearly written in the attachment below

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.

but which class are u may know that first