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3 years ago

13

I almost got the problem but the problem was the rounding. I believe I rounded right but it is still incorrect. Can someone plea

se help me on the rounding portion of the question? Thank you for your help!!!

1 answer:

ella [17]3 years ago

4 0

Answer: The answer that I got for z was 0.111575, which when you round it to the hundredths place would be 0.11

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110% of 90 is what?????????????????????????????

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110% of 90 is 99, 1.1*90=99

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Abby owns a comic book that originally sold for 12¢ in 1969. In 2014, the comic book had an appraised valued of $3,700. Given th

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Dawson purchased a pair of shoes on boxing-day that was discounted by 60% from the original price of $150.00. Calculate the amou

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The ages of registered voters in Smith County are normally distributed with a population standard deviation of 3 years and an un

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Answer:

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Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.025 = 0.975$ , so Z = 1.96.

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$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

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Sample of 18 voters

This means that $n = 18$

Margin of error:

$M = z\frac{\sigma}{\sqrt{n}}$

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