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3 years ago

4.

Mathematics

1 answer:

wolverine [178]3 years ago

3 0

B I hope it helps for you

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Digiron [165]

Answer:

The slope represents the cost per gallon for heating oil while the y-intercept represents the fee for heating oil.

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3 years ago

What has 2 fewer sides than a heptagon

AVprozaik [17]

A pentago Which Is A Five Side Figure and a heptagon is a seven sided figure

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3 years ago

Read 2 more answers

Can someone please help me?the question is in the picture. Thank you

kaheart [24]

Answer:

Step-by-step explanation:

The two triangles are congruent because they have three rispective side congruent

AB and AD are both radiuses and AC is in common

so m arc BC is 78 degrees

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3 years ago

PLEASE HELP WITH 17 and 18

Zinaida [17]

17
linear has 1 as highest exponent
D has x^2
D is not linear

18. find slope
(y2-y1)/(x2-x1)=(-1-2)/(0-4)=-3/-4=3/4
y=3/4x+b

B is answer

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3 years ago

Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using federal tax dollars to fund

ser-zykov [4K]

Testing the hypothesis, it is found that since the p-value of the test is 0.0042 < 0.01, it can be concluded that the proportion of subjects who respond in favor is different of 0.5.

At the null hypothesis, it is tested if the proportion is of 0.5, that is:

$H_0: p = 0.5$

At the alternative hypothesis, it is tested if the proportion is different of 0.5, that is:

$H_1: p \neq 0.5$

The test statistic is given by:

$z = \frac{\overline{p} - p}{\sqrt{\frac{p(1 - p)}{n}}}$

In which:

$\overline{p}$ is the sample proportion.
p is the value tested at the null hypothesis.
n is the sample size.

In this problem, the parameters are given by:

$p = 0.5, n = 483 + 398 = 881, \overline{p} = \frac{483}{881} = 0.5482$

The value of the test statistic is:

$z = \frac{\overline{p} - p}{\sqrt{\frac{p(1 - p)}{n}}}$

$z = \frac{0.5482 - 0.5}{\sqrt{\frac{0.5(0.5)}{881}}}$

$z = 2.86$

Since we have a two-tailed test(test if the proportion is different of a value), the p-value of the test is P(|z| > 2.86), which is 2 multiplied by the p-value of z = -2.86.

Looking at the z-table, z = -2.86 has a p-value of 0.0021.

2(0.0021) = 0.0042

Since the p-value of the test is 0.0042 < 0.01, it can be concluded that the proportion of subjects who respond in favor is different of 0.5.

A similar problem is given at brainly.com/question/24330815

3 0

3 years ago