4 years ago

What is the answer to number 4

1 answer:

laiz [17]4 years ago

3 0

Y=-2x^2+2x-4. Should be correct

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KiRa [710]

The answer is: -72.19634511

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2 years ago

dusya [7]

Answer:

this is to hard and I like math

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3 years ago

Juliette [100K]

Answer:

95% Confidence interval: (31.32%,47.04%)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 148

Number of people who sleep for 8 hours or longer, x = 58

$\hat{p} = \dfrac{x}{n} = \dfrac{58}{148} = 0.3918$

95% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting the values, we get:

$0.3918\pm 1.96(\sqrt{\dfrac{0.3918(1-0.3918)}{148}})\\\\ = 0.3918\pm 0.0786\\\\=(0.3132,0.4704)=(31.32\%,47.04\%)$

(31.32%,47.04%) is the required 95% confidence interval.

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3 years ago

In-s [12.5K]

3t3t3 =9 5t5t5 = 15 add to of the products and get 105

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Anna11 [10]

The change is 6 because the pouts you lose depends on how many times you leave the shoes at home

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