The total of it seems to be 60 since there is nothing else before this question .
Answer:
He will need 4 newborns in the sample to be 95% confident.
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 margin of error M as such

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





He will need 4 newborns in the sample to be 95% confident.
Answer:
B
Step-by-step explanation:
a²+b²=c²
3²+b²=5²
b²=5²-3²
b²=25-9=16 answer is 16
Answer:A flower garden occupies 57 portion of a park. If the park has an area of 14725sqm, find the area of the garden
Step-by-step explanation: