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.
LGN I believe. If you look at how the ret part of the match corresponds with the next match, you can correspond the letters based on the other triangles.
Answer:
$1,236.25
Step-by-step explanation:
Since sales tax is 7.5% of the purchase, and since the pc costs 1,150, take 7.5% of 1,150, and add 1,150 and the new value together.
7.5 / 100 = 0.075
1150 * 0.075 = 86.25
1150 + 86.25 = 1236.25
The answer is x=4 I have included a photo with the steps I hope it helps
Answer:
10 km
Step-by-step explanation:
volume of cube = s^3
1 m = 100 cm
volume = s^3 = (1 m)^3 = (100 cm)^3 = 1,000,000 cm^3
Since 1 m^3 = 1,000,000 cm^3, when you lay down the 1-cm cubes in a straight line with the edges touching, the line is 1,000,000 cm long.
1,000,000 cm = 10,000 m = 10 km
