Allie went trick - or - treating one day. she wanted to dress up as a princess but her costume costs $340. she only as $119. how
2 answers:
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Answer:
the standard error of the proportion is 0.0272
Step-by-step explanation:
We have that if the sample size is greater than 5% of the entire population, a finite population correction factor (fpc) is multiplied with the standard error :
fpc =
We know that N = 250 n = 91, replacing:
fpc =
fpc = 0.799
Now, the formula would then be:
SE = *fpc
Now replacing, knowing that p = 0.12
SE= *0.799
SE = 0.0272
So the standard error of the proportion is 0.0272
To find the mean, you have to add all the numbers then divide it by how many numbers there are.
In this case, you'll need to add all those numbers and divide it by 4.
The mean is 1995.
In this case, you'll need to add all those numbers and divide it by 4.
The mean is 1995.