Answer: B
The rotation will go back to the place where the trapezoid started
Answer:
Step-by-step explanation:
Given that a survey was conducted that asked 1004 people how many books they had read in the past year.
Results are:
x bar =12.5
s = 16.6
n = 1004
Std error of sample = ![\frac{s}{\sqrt{n-1} } =\frac{16.6}{\sqrt{1003} }\\=0.524152\\=0.524](https://tex.z-dn.net/?f=%5Cfrac%7Bs%7D%7B%5Csqrt%7Bn-1%7D%20%7D%20%3D%5Cfrac%7B16.6%7D%7B%5Csqrt%7B1003%7D%20%7D%5C%5C%3D0.524152%5C%5C%3D0.524)
Since population std dev is not known t critical value can be used for confidence interval.
df = 1004-1 =1003
t critical = 1.96
Margin of error ![= 1.96(std error) =1.027](https://tex.z-dn.net/?f=%3D%201.96%28std%20error%29%20%3D1.027)
Confidence interval lower bound ![= 12.5-1.027 = 11.473](https://tex.z-dn.net/?f=%3D%2012.5-1.027%20%3D%2011.473)
Upper bound
Answer:
yes
Step-by-step explanation:
I hope it's about 1.8 sec