A model is going to be built of a sports car that is 132 inches long and 66 inches high. If the scale is 1:12, what will be the
dimensions of the model car?
1 answer:
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Answer:
The sampling distribution of the sample mean is approximately normal with mean 72 and standard deviation 1.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem establishes 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.
Normally distributed with mean 72 and standard deviation 6.
This means that
A random sample of size 36
This means that
The sampling distribution of the sample mean is
By the Central Limit Theorem, it is approximately normal with mean 72 and standard deviation 1.
Answer:
Step-by-step explanation:
Given
Length of the pipe
Inside diameter of the pipe
Outside diameter of the pipe
Volume of the pipe