We have calculated a 95% confidence interval and would prefer for our next confidence interval to have a smaller margin of error
1 answer:
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Use the same to solve the rest of the problems. Hope this helps:)
Answer:
A.
B.
Step-by-step explanation:
A.
Where,
Plug in the values to get a polynomial that represents the area of the tool
B. To find area, when x = 4.5 in, plug in the value of x into the equation for the area of the tool.