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:
0.3
Step-by-step explanation:
C)5.40
The answer is $5.40 because 5 x 8=40 and the sales tax is 8% so you just add 2 decimal places so 5.00 + .40 =5.40.
P.S. You put the answer in your question.
8-3x
Divide the whole thing by 2 so it would be y=4-1.5x
Answer:
y = 8x - 8
Step-by-step explanation:
y = mx + b is slope-intercept form
m - slope
b - y-intercept
so if you plug in 8 for m and -8 for b you'll get
y = 8(m)x - 8(b)
Hope this helps!!
