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Romashka-Z-Leto [24]
2 years ago
15

Help I’m willing to give points if needed or $

Mathematics
1 answer:
bekas [8.4K]2 years ago
6 0

Answer:

it's the first one

hope it helps

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Identify the slope (m) and y-intercept (b): 3x + 2y = -4
eduard

Answer:

4.

Step-by-step explanation:

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2 years ago
Test the claim that the proportion of people who own cats is significantly different than 80% at the 0.2 significance level. The
sattari [20]

Answer:

C. H0 : p = 0.8 H 1 : p ≠ 0.8

The test is:_____.

c. two-tailed

The test statistic is:______p ± z (base alpha by 2) \sqrt{\frac{pq}{n} }

The p-value is:_____. 0.09887

Based on this we:_____.

B. Reject the null hypothesis.

Step-by-step explanation:

We formulate null and alternative hypotheses as  proportion of people who own cats is significantly different than 80%.

H0 : p = 0.8 H 1 : p ≠ 0.8

The alternative hypothesis H1 is that the 80% of the  proportion is different and null hypothesis is , it is same.

For a two tailed test for significance level = 0.2 we have critical value  ± 1.28.

We have alpha equal to 0.2  for a two tailed test . We divided alpha with 2 to get the answer for a two tailed test. When divided by two it gives 0.1 and the corresponding value is ± 1.28

The test statistic is

p ± z (base alpha by 2) \sqrt{\frac{pq}{n} }

Where p = 0.8 , q = 1-p= 1-0.8= 0.2

n= 200

Putting the values

0.8 ± 1.28 \sqrt{\frac{0.8*0.2}{200} }

0.8 ± 0.03620

0.8362, 0.7638

As the calculated value of z lies within the critical region  we reject the null hypothesis.

8 0
2 years ago
How does the decimal point move when 0.45 is multiplied by 10 to the 4 power.
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Answer:

450,000.

Step-by-step explanation:

The decimal point moves to the right, because 10 to the power of 4 is 10,000.

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How do I work this type of problem
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<h2>Required set will be :-</h2><h3>(9,15)</h3>

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