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monitta
3 years ago
12

Adding and Subrtracting Fractions.Solve each problem.Write your answer as a mixed number(if possible)

Mathematics
1 answer:
Fudgin [204]3 years ago
4 0
5) 2 3/35
6) 8 5/8
7) 9/40
8) 5 7/10
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Unoccupied seats on flights cause airlines to lose revenue. Suppose a large airline wants to estimate its average number of unoc
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We need a sample size of at least 719

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We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

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0.3\sqrt{n} = 1.96*4.103

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(\sqrt{n})^{2} = (\frac{1.96*4.103}{0.3})^{2}

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Rouding up

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