Answer:
111
Explanation:
The sample mean is within 1.3units of the population mean, therefore the margin of error (E) = 1.3
confidence (C) = 90% = 0.9
α = 1 - C = 1 - 0.9 = 0.1
α/2 = 0.1 / 2 = 0.05
The z value for a confidence of 90% = z value of α/2 = z value of 0.45 (0.5 - 0.05) = 1.645
Given that E = 1.3, standard deviation (σ) and sample size = n.
The margin of error (E) is given by:
![E=Z_\frac{\alpha}{2}*\frac{\sigma}{\sqrt{n} } \\\\Substituting:\\\\1.3=1.645*\frac{8.3}{\sqrt{n} }\\\\\sqrt{n}= 1.645*\frac{8.3}{1.3}\\\\\sqrt{n} =10.5\\\\n=110.3](https://tex.z-dn.net/?f=E%3DZ_%5Cfrac%7B%5Calpha%7D%7B2%7D%2A%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%20%7D%20%20%5C%5C%5C%5CSubstituting%3A%5C%5C%5C%5C1.3%3D1.645%2A%5Cfrac%7B8.3%7D%7B%5Csqrt%7Bn%7D%20%7D%5C%5C%5C%5C%5Csqrt%7Bn%7D%3D%20%201.645%2A%5Cfrac%7B8.3%7D%7B1.3%7D%5C%5C%5C%5C%5Csqrt%7Bn%7D%20%3D10.5%5C%5C%5C%5Cn%3D110.3)
n ≈ 111 (to the next whole number)
Answer:
Normally its the pleasure of doing so or they are just in need of something (i.e. robbing a bank-in need of money). Most people who do something wrong to get something they want do it for the thrill or the pleasure.
Answer:
But before the line of irrecoverable separation be drawn between us, let us reason the matter together.
Explanation:
Answer:
I didn't quote text but I wrote a little paragraph-
In my opinion, we are a too dependent on technology as a society. A good example of this is GPS. We use this software almost daily, it shows us how to get to and from places and can even track other people, we have become incredibly reliant on it, and many people have never used maps once in their lives.
sorry it's not the greatest, but I hope it helps! :)
Answer:Warmer weather helps plants and animals thrive. People become more active and healthy taking in vitamin d and enjoying out doors.
Explanation: