Answer:
We need to sample at least 37 weeks of data.
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
We want 98% confidence that the sample mean is within $500 of the population mean, and the population standard deviation is known to be $1300
This is at least n weeks, in which n is found when
So
Rounding up
We need to sample at least 37 weeks of data.
Answer:
Step-by-step explanation:
0.25 = 25/100=1/4
Answer:
0.25 = 25%
40 players * 0.25 percent = 10 players
10 players did <u><em>NOT </em></u> like their positions.
(the 2 teams is a trick to throw you off)
Let's say side length is s.
s*s = 500, so s = √500.
4 sides needed, total length thus 4*s.
4√500 ≈ 89.4
So the formula for this is for every inch of width, you multiply by 2 to get the length.
Here, I made a table for it.
2×2=4
4×2=8
7×2=14
8×2=16 or 16÷2=8