3 is the correct slope of the line:)
Answer:
1175/954 there your answer
Answer:
A sample size of at least 737 specimens is required.
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 width M as such

In which
is the standard deviation of the population and n is the size of the sample.
In this problem, we have that:

So:





A sample size of at least 737 specimens is required.
2x + 9 < 32
2x < 32 - 9
2x < 23
x < 23/2
x < 11.5 <==
2 eggs are needed because if you need 4 to make 2 batches, you have to divide 4 by 2.