Answer:

Step-by-step explanation:
Given the fraction 
Consider its numerator and factor it:

You cann not take the cube root from
you can only take the cube root from
, then the smallest whole number
such that
is a cube number is

When 

To use arithmetic to solve ot
Answer:
The standard error of the proportion is 0.0367.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean
and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the standard error is 
In this question:

So

The standard error of the proportion is 0.0367.