Answer: Margin of error = 1932
Step-by-step explanation: <u>Margin</u> <u>of</u> <u>Error</u> is the amount of variation a survey's results have. In other words, it is understood as the measure of variation one can see if the same survey was taken multiple times.
Margin of error is calculated as
z is z-score related to the percentage of confidence, in this z = 2.576
σ is population standard deviation
n is how many individuals are there in the sample or population
With a new level of confidence of 99%:
ME =
ME = 2.576(750)
ME = 1932
The new margin of error would be 1932.
Answer: 9 x 10^-2
Step-by-step explanation: you need to get the number between 1-9. You can do that by moving the decimal to the right 2 times. That gives you 9.00 or 9. Since you moved it to the right 2 times that means the exponent would be negative
It is 140
I hope this help you