Answer:
the only thing i know that n=-30
The next number is 14 I believe
<span>The volume of a rectangular prism is
V = l · w · h
V= 252 cm3
h= 3 cm
l=5+W
W=x then l=5+x
V=(5+x)*x*3=252
3x</span><span>^2+15x=252 cm3
</span><span>
the equation that models the volume of the tray in terms of its width, x, in centimeters.</span>
3x^2 +15x=252 cm3<span>
</span>
for width=7.5 cm
3x^2
+15x=3*(7.5) ^2+15*7.5= 281.25 cm3
<span>281.25>252 </span><span> </span>
<span>it is not possible that the width is 7.5 cms</span>
Answer:
The minimum sample size required to create the specified confidence interval is 1024.
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 size of the sample.
What is the minimum sample size required to create the specified confidence interval
This is n when
.






The minimum sample size required to create the specified confidence interval is 1024.