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2 years ago

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Julia is allowed to watch no more than 5 hours of television a week. so far this week, she has watched 1.5 hours. write and solv

e an inequality to show how many hours of television julia can all watch this week.

1 answer:

gulaghasi [49]2 years ago

5 0

<span>X + 1.5 â‰¤ 5 X â‰¤ 3.5 "Julia is allows to watch no more than 5 hours of television" X â‰¤ 5 "She has watched 1.5 hours" X + 1.5 â‰¤ 5 So the inequality to solve is: X + 1.5 â‰¤ 5 Now to solve it, just subtract 1.5 from both sides: X + 1.5 â‰¤ 5 X + 1.5 - 1.5 â‰¤ 5 - 1.5 X â‰¤ 3.5 So Julia can watch up to 3.5 more hours of TV this week.</span>

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2 years ago

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2 years ago

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Answer:

The test statistics is $z = -1.56$

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Step-by-step explanation:

From the question we are told

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Generally the sample proportion of West side is

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Generally the pooled sample proportion is mathematically represented as

$p = \frac{k + u}{ n_1 + n_2 }$

=> $p = \frac{76 + 112}{ 578 + 688 }$

=> $p =0.1485$

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$z = \frac{\^ {p}_1 - \^{p}_2}{\sqrt{p(1- p) [\frac{1}{n_1 } + \frac{1}{n_2} ]} }$

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$p-value = P(z < -1.56 )$

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