Answer:
sample size n would be 149305 large
Value of n (149305) is too high, this will be the practical problem with attempting to find this confidence interval
Step-by-step explanation:
Given that;
standard deviation α = 150 min
confidence interval = 99%
since; p( -2.576 < z < 2.576) = 0.99
so z-value for 99% CI is 2.576
E = 1 minutes
Therefore
n = [(z × α) / E ]²
so we substitute
n = [(2.576 × 150) / 1 ]²
n = [ 386.4 ]²
n = 149304.96 ≈ 149305
Therefore sample size would be 149305 large
Value of n is too high, that would be the practical problem with attempting to find this confidence interval
The last statement is true
2x=360/4
2x=90
divide by 2 on each side
x=45
Yeah true, need help with more?
Answer:
There are 125 cubes.
Step by Step Explanation:
Because if one cubes has the edge length of 1 inch,
its volume will be 1 * 1 * 1 = 1 cubic inch
Then if to find how many cubes are there, we divide the volume of the box by the cubes ------> 125 : 1 = 125 cubes.
