3^3/4^2 (this is the exponent form)
Answer is
27/16
I believe the answer is 6 but i’m not for sure
Answer:
The 95% confidence interval for the population mean daily protein intake is between 69.97g and 84.03g.
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 sample mean subtracted by M. So it is 77 - 7.03 = 69.97g.
The upper end of the interval is the sample mean added to M. So it is 77 + 7.03 = 84.03g.
The 95% confidence interval for the population mean daily protein intake is between 69.97g and 84.03g.
Answer:
Given:
1).
divided by 
⇒ 
⇒ 
By factorising numerator by using identity, 
⇒ 
⇒ 
⇒
<u> {Answer}</u>
2).
divided by 
⇒ 
⇒
⇒ <u>
</u> <u>{ Answer}</u>