Answer:
(64-23)8.3
Step-by-step explanation:
Solve the parenthesis first, then multiply
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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.
She has 630 blue beads and 45 red beads. Equation is x + 14x = 675