Answer:Accordingly, the Necessary Sample Size is calculated as follows:
Necessary Sample Size = (Z-score)² * StdDev*(1-StdDev) / (margin of error)²
For example, given a 95% confidence level, 0.5 standard deviation, and a margin of error (confidence interval) of +/- 5%. Necessary Sample Size =
((1.96)² x 0.5(0.5)) / (0.05)²
(3.8416 x 0.25) / .0025
0.9604 / 0.0025
384.16
So in order to get 95% confidence level, with confidence interval of +/- 5%, and standard deviation of 0.5, I have to survey 385 samples.
As I usually calculate the average value on 100 samples. So what is the confidence level I can get?
Is anyone who has experience on this can share something.
Hey there! In vehicles equipped with ABS, the driver's foot must remain firmly on the: A. accelerator
Hope this helps! :)
A constellation.may it help you
Answer:
b upper middle class
Explanation:
because of term high income
Answer:
There are a few factors that influence a shift in the demand curve, and some of them are income, trends, prices, expectations, structure of the population.
Explanation:
The change of the shift of the curve appears when the whole demand curve is moving to the left or the right.
This movement depends on the price if the other factors that influence the moving are stable. Everything else, except the price, will move the curve to the left or the right.
