Write y = 2x2 + 4 in function notation. A) x = 2x2 + 4 B) f(x) = 2x2 + 4 C) f(y) = 2x2 + 4 D) f(y) = 2y2 + 4
2 answers:
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Answer:
The critical value for the 95% confidence interval is z = 1.96.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of
So it is z with a pvalue of , so z = 1.96.
The critical value for the 95% confidence interval is z = 1.96.