Answer:
Mean of sampling distribution = 25 inches
Standard deviation of sampling distribution = 4 inches
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 25 inches
Standard Deviation, σ = 12 inches
Sample size, n = 9
We are given that the distribution of length of the widgets is a bell shaped distribution that is a normal distribution.
a) Mean of the sampling distribution
The best approximator for the mean of the sampling distribution is the population mean itself.
Thus, we can write:
![\bar{x} = \mu = 25\text{ inches}](https://tex.z-dn.net/?f=%5Cbar%7Bx%7D%20%3D%20%5Cmu%20%3D%2025%5Ctext%7B%20inches%7D)
b) Standard deviation of the sampling distribution
![s = \dfrac{\sigma}{\sqrt{n}} = \dfrac{12}{\sqrt{9}} = 4\text{ inches}](https://tex.z-dn.net/?f=s%20%3D%20%5Cdfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%20%3D%20%5Cdfrac%7B12%7D%7B%5Csqrt%7B9%7D%7D%20%3D%204%5Ctext%7B%20inches%7D)
<span>0.64
2/3 = 0.67
65% = 0.65
7/10 = 0.70
answer
</span>Order from least to greatest: 0.64, 65%, 2/3 and 7/10
Answer:
V=64
Step-by-step explanation:
What you do is go based off the volume formula of a cube which is V=a^3.
You have a side length of 4.
V=4^3.
V=64.
Answer:
5/1
Step-by-step explanation:
A fraction is the same as division so just do the division and you get 5/1 or just 5