Answer:
A.4
Step-by-step explanation:
The average length of a paperback book is 4.25 inches in height and 6.87 in length. So the options you have here are 4,8,14, and 18 inches the closest number to 6.87 in 4 inches. I hope my answer helps you a lot.
Answer:
a) 
b) Null hypothesis: 
Alternative hypothesis: 
And we can use a t test procedure in order to check if the true mean is equat to the desired value.
Step-by-step explanation:
For this case we know that this:
Claim: The mean pulse rate (in beats per minute) of adult males is equal to 69.5 bpm
Part a
If we convert this with symbols we can write this as:

Part b
We have the following info given:
represent the sample mean
represent the sample size
We have the following system of hypothesis:
Null hypothesis: 
Alternative hypothesis: 
And we can use a t test procedure in order to check if the true mean is equat to the desired value.
The answer would be 1211.25 because 28500 x 0.0425 is equal to that. (don't trust this answer).
Q (-2,1) R (0,1) S (0,-2) P (-2,-2)
Answer:
2.1/√55
Step-by-step explanation:
simga divided by sample size