Answer:
B. Larger sample size and lower confidence level
Step-by-step explanation:
The margin of error of a confidence interval is given by the following formula:
In which 
is the standard deviation of the population and n is the size of the sample.
z is related to the confidence level. The higher the confidence level, the higher the value of Z.
So, the margin of error is direct proportion to the confidence level and inverse proportional to the sample size.
We want to decrease the margin of error.
So the correct answer is:
B. Larger sample size and lower confidence level
Answer:
I believe the period is 1. Because if it was y= sin2 (2(x-1/2) then the period would be 2.
Answer:
30
Step-by-step explanation:
40
x 0.75
-----------
= 30
The answer is less than 90 but greater than 35. because the other angles look as if they are 105 I would say that the answer is 75
5 kg is more precise because if you said 5212 g, they will be trying to see what the precise answer is so if you say 5 kg that will save all of the work.
P.S.: its not 5212 g, its 5000 g. :)
