The sample size can be calculated by the following formula:
where s is the sample size, z is the z-score of the confidence level, p is the decimal form of the percentage who picked a certain choice in the poll, and E is the margin of error expressed as a decimal.
We first find the margin of error in the original sample size of 270.
Since the new sample had 3 times the margin of error of the first poll, we will use 3(0.038) or 0.114 as the margin of error of the new sample. We then compute for the sample size using the same formula.
ANSWER: 30 people were surveyed on the second poll.
I got 75 and I’m pretty sure that right?
Answer:
A) 8,2
Step-by-step explanation:
all you got to do is count upward
45,000 because if you were to go up and under then that’s just yep.
Answer:
$90
Step-by-step explanation:
70-25 = 45
45x2 = 90