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:
What’s this called again? And do u possibly know the formula for this? I just need these elements to solve it... plz reply
Step-by-step explanation:
5 multiplied by .3 is 1.5
1.5 + 18.5 = 20.
y = 9.25
Answer:
The coordinates I chose are (0,-5) and (2,-4)
Step-by-step explanation: