Try this option:
answer is 18.
For more information see the attached picture.
Answer:
The 90% confidence interval for the mean usage of electricity is between 17.4 kwH and 17.6 kwH
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 1-0.05 = 0.95, so z = 1.645
Now, find the margin of error M as such

In which
is the standard deviation of the population and n is the size of the sample.
So

The lower end of the interval is the mean subtracted by M. So 17.5 - 0.14 = 17.4 kwH
The upper end of the interval is M added to the mean. So 17.5 + 0.14 = 17.6 kwH
The 90% confidence interval for the mean usage of electricity is between 17.4 kwH and 17.6 kwH
Answer:
I can't give you an exact answer because the graph is too blurry.
Step-by-step explanation:
however I can tell you how to answer it,
so all you need to do is take each point on the graph and add 2 to the y coordinate and add 5 to the x. you so this because it says up and to the right. hope this helps
Hey there!
In order for you to solve for this. You have to COMBINE YOUR LIKE TERMS
(9 )+ (5r - 9r)
(5r - 9r) = -4r
(+ 9) = +9
Answer: -4r + 9
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
1/6 _12/85/907 4456
first put h then a then aaaaaaaaaaaaaaaaaaaaaaa then hah