Answer:
See Explanation
Explanation:
The question is incomplete as the value of s(t) is missing;
However, the following explanation will guide you;
I'll continue my explanation with the following assumption that:
Required
Determine the velocity at t = 8
To do this; first calculate s(t) by substituting 8 for t in
Next, is to calculate the velocity by dividing s(t) by t where t = 8
i.e.
Substitute 8 for t
Substitute 72 for s(8)
<em>So: all you need to do is first calculate s(8), then divide the resulting value by 8 to get your result</em>
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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.
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