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3 years ago

Can someone help plz

Mathematics

1 answer:

kondor19780726 [428]3 years ago

7 0

$3.40

You can get this by using 1.028 (the rate of inflation) and raising it to the 7th power (amount of years). Then multiply the result by 2.80.

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<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

$\overline{x} \pm z\frac{\sigma}{\sqrt{n}}$

The margin of error is:

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More can be learned about the z-distribution at brainly.com/question/25890103

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