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AVprozaik [17]
3 years ago
6

Ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

Mathematics
2 answers:
Lyrx [107]3 years ago
7 0

Answer:

its 2 1/4

Step-by-step explanation:

1/2x2 is 1 whole. 3/4 plus 1/4 is 2 wholes. plus 1/4 which is 2 1/4.

dsp733 years ago
7 0

Answer:

correct

Step-by-step explanation:

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Solve : 13(3+2x)−1=10
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Ed is on a road trip. He has already traveled 238 miles and is driving at a rate of 68 miles per hour. Which equation could be u
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Step-by-step explanation:

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Answer:

Z = -1.333

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Step-by-step explanation:

Given that:

The sample size of the poll = 1068

The proportion of voters that preferred Democratic candidate is \hat p = 0.48

To test the claim that at least half of all voters prefer the Democrat, i.e 1/2 = 0.5

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Z = \dfrac{\hat p - p}{\dfrac{\sqrt{p(1-p) }}{n}}}

Z = \dfrac{0.48 - 0.5}{\dfrac{\sqrt{0.5(1-0.5) }}{1068}}}

Z = \dfrac{-0.02}{\sqrt{\dfrac{{0.5(0.5) }}{1068}}}

Z = \dfrac{-0.02}{\sqrt{\dfrac{{0.25}}{1068}}}

Z = \dfrac{-0.02}{0.015}

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From z tables,

P-value  = 0.09176

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Decision Rule: Reject H_o if ∝  is greater than the P-value

Conclusion: Since P-value is >  the level of significance ∝, we fail to reject the null hypothesis, therefore there is insufficient evidence to conclude that at least half of all voters prefer the Democrat.

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