Answer:
The standard deviation of the sample mean is 4 minutes
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.
In this problem, we have that:
The standard deviation of the population is 32.
Sample of 64.
So
The standard deviation of the sample mean is 4 minutes
9*6 = 54 which is also divisible by 2 and 3
another one would be 2*54 = 108
Answer 54 and 108.
10. slope intercept form : y = mx+b
we can see that the line hits the y-axis at +1
and that the line inclines one up one
so it would be y = x + 1
Answer:
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