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2 years ago

Helpp noww pleasee!! 30 pointss

Mathematics

2 answers:

Eva8 [605]2 years ago

7 0

Answer:

78°

Step-by-step explanation:

angle CAW=180-168

angle CAW=12

angle DWB=12 vertically opposite to angle CAW

Sum of angles at a point=360

168+12+12+90+w=360

282+w=360

Collect like terms

w=360-282

w=78

masha68 [24]2 years ago

5 0

Answer:

729

Step-by-step explanation:

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(3.45 x 103) + (1.23 x 103)

mr Goodwill [35]

Answer:

482

Step-by-step explanation:

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3 years ago

When performing tests involving two or more populations it is important to specify which population is population 1 and which is

iris [78.8K]

Answer:

a. True

Explain:

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2 years ago

Estimate the difference of 1.9 – 0.7 = ________ by rounding each number to the nearest whole number.

miss Akunina [59]

B 1 since you would round 1.9 to 2 and 0.7 to 1

7 0

3 years ago

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PLEASE HELP PLEASE (dont do links)

miss Akunina [59]

Answer:

-2(0)²+24(0)-54

= -54

5 0

3 years ago

Read 2 more answers

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

2 years ago