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3 years ago

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Jennifer plans to drive from Spokane, Washington to Missoula, Montana, to visit her aunt. On the map Jennifer is using, each inc

h represents 20 miles. If the distance on the map from Spokane to Missoula is 5¼ inches, how far is it in actual miles?

1 answer:

djverab [1.8K]3 years ago

5 0

Here is your answer

HOPE IT IS USEFUL

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Answer:

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$\hat p=\frac{Upper \ Bound+Lower \ Bound}{2}\\\\=\frac{0.878+0.412}{2}\\\\=0.645\\\\$

#The margin of error, ME can be calculated for the confidence intervals using the formula:

$ME=\frac{Upper \ Bound-Lower \ Bound}{2}\\\\=\frac{0.878-0.412}{2}\\\\=0.233$

#The number of individuals in the sample is the product of the point estimate and population size:

$\hat p=\frac{x}{n}\\\\x=\hat pn\\\\=0.645\times 1000\\\\=645$

Hence, there are 645 individuals in the sample.

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