We need to see the exercise 3 first
Answer:
The standard deviation of the sampling distribution of the sample wait times is of 0.8 minutes.
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. Otherwise, the mean and the standard deviations holds, but the distribution will not be approximately normal.
Standard deviation 4 minutes.
This means that ![\sigma = 4](https://tex.z-dn.net/?f=%5Csigma%20%3D%204)
A sample of 25 wait times is randomly selected.
This means that ![n = 25](https://tex.z-dn.net/?f=n%20%3D%2025)
What is the standard deviation of the sampling distribution of the sample wait times?
![s = \frac{4}{\sqrt{25}} = 0.8](https://tex.z-dn.net/?f=s%20%3D%20%5Cfrac%7B4%7D%7B%5Csqrt%7B25%7D%7D%20%3D%200.8)
The standard deviation of the sampling distribution of the sample wait times is of 0.8 minutes.
Answer:
To find the area of each parallelogram.
From the give figure we get that,
base=6 units (that is it covers 6 cubes)
Height= 2 units
Area of the parallelogram is,
![=\text{base}\times height](https://tex.z-dn.net/?f=%3D%5Ctext%7Bbase%7D%5Ctimes%20height)
![=6\times2=12unit^2](https://tex.z-dn.net/?f=%3D6%5Ctimes2%3D12unit%5E2)
Area of the given parallelogram. is 12 sq.units.
Answer:
Y intercept is 275. X intercept is 125.
Step-by-step explanation:
The y intercept is where the line meets the y axis. The x intercept is where the line meets the x axis. You just have to look at those.