Answer:
all work shown and pictured
The surface area of a cylinder is 602.88. If the dimensions of the cylinder are
1 answer:
You might be interested in
Answer:
C.
Step-by-step explanation:
We want fg of x, so first we have to multiply f(x) times g(x).
We can cancel out an x from every term.
Let's rewind a little to get this into one of the answer choices.
is our answer.
Answer:
The 98% confidence interval for the mean purchases of all customers is ($37.40, $61.74).
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 M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the mean subtracted by M. So it is 49.57 - 12.17 = $37.40.
The upper end of the interval is the mean added to M. So it is 49.57 + 12.17 = $61.74.
The 98% confidence interval for the mean purchases of all customers is ($37.40, $61.74).