25% I think
Explaination‼️‼️
I think it would be around 17 in
Answer:
A sample size of 128 is needed.
Step-by-step explanation:
We have that to find our
level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of
.
So it is z with a pvalue of
, so 
Now, find the margin of error M as such

In which
is the standard deviation of the population(square root of the variance) and n is the size of the sample.
How large should a sample be if the margin of error is 1 minute for a 93% confidence interval
We need a sample size of n, which is found when
. We have that
. So





Rounding up
A sample size of 128 is needed.
- - Solve:
How many times can 5.18 get into 16.8?
Its going to be represented as a decimal:
Answer:
C=−Ax−By
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.