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3 years ago

Can anyone answer this question ?

Mathematics

1 answer:

kondaur [170]3 years ago

5 0

X1=radical 6--->2.44
X2=-radical 6/3--->-0.816

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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

3y + x = 12 What is the value of x when y = 3?

Andre45 [30]

Step-by-step explanation:

3y + x = 12

When y = 3, we have 3(3) + x = 12.

=> 9 + x = 12, x = 3.

6 0

2 years ago

Solve the equation. Round the solution to the tenths place. 6.35t = 56.515 t =

Westkost [7]

Answer:

t = 8.9

Step-by-step explanation:

6.35t = 56.515

56.515 / 6.35 = t

t = 8.9

5 0

3 years ago

Which number is greater than 5.352 and less than 5.358

Lana71 [14]

Answer:

5.353

Step-by-step explanation:

hope this helps!

3 0

3 years ago

Read 2 more answers

Write down three integers, all less than 25, whose

ziro4ka [17]

Answer:

Our required integers will be 9,11,19.

Step-by-step explanation:

Let three integers all less than 25 be x,y,z

Since we have given that

Range = 10

Mean = 13

These three integers will be

Since their range is 10 i.e.

And Mean = 13

5 0

2 years ago

Can anyone answer this question ?​

Can anyone answer this question ?