Answer:
The standard error of the mean for this sample is 9.033
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:

So

The standard error of the mean for this sample is 9.033
1 cup: 8 oz.
1 pint: 2 cups-16 oz.
the pitcher: 40 oz.
First we found out that she poured two cups which is equivalent to 16 oz.
So what we need to do is subtract 16 form 40 which would leave us with what? 24 now we know that 8 goes into 24 3 times
So there would be 3 cups left in the pitcher yet it would be 1 1/2 pints left(your answer, hope this helped!)
#7
d/2 +d/5 + d/3 = 3
(15d + 6d + 10d) / 30 = 3
15d + 6d + 10d = 90
31d = 90
d = 90/31
d = 2 28/31