3 years ago

How to solve y=0.40x+70

Mathematics

1 answer:

den301095 [7]3 years ago

8 0

Its hard to explain how to solve but I could just give you the answer: 4.4

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Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 15 feet

Sample mean, $\bar{x}$ = 14.8 feet

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Alpha, α = 0.05

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95% Confidence interval:

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$t_{critical}\text{ at degree of freedom 15 and}~\alpha_{0.05} = \pm 2.1314$

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is the required confidence interval for the true mean length of rods.

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