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Kipish [7]
2 years ago
15

I need help figuring out how to do this.

Mathematics
2 answers:
MrRa [10]2 years ago
7 0
The answer will be letter "B" you take 450 times it by 4.29
and u get 1,930.50
Lady bird [3.3K]2 years ago
7 0
For this case we can make the following rule of three:
 1 USD ---------> 4.29 Bolivars
 450 USD -----> x
 Clearing x we have:
 x = (450/1) * (4.29)
 x = 1930.5 bolivars
 Answer:
 
Andreina does receive about:
 
B. 1,930.50
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miskamm [114]

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The conditions for use of the normal model to represent the distribution of sample proportion are not met. He should increase the sample size until the conditions are met.

If the test is done anyway, the null hypothesis failed to be rejected.

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Step-by-step explanation:

The conditions for use of the normal model to represent the distribution of sample proportion are not met, as the affirmative responses are less than 10.

np=80*0.1=8

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Then, the null and alternative hypothesis are:

H_0: \pi=0.173\\\\H_a:\pi

The significance level is 0.05.

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The sample proportion is p=0.1.

 

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{\pi(1-\pi)}{n}}=\sqrt{\dfrac{0.173*0.827}{80}}\\\\\\ \sigma_p=\sqrt{0.001788}=0.042

Then, we can calculate the z-statistic as:

z=\dfrac{p-\pi+0.5/n}{\sigma_p}=\dfrac{0.1-0.173+0.5/80}{0.042}=\dfrac{-0.067}{0.042}=-1.578

This test is a left-tailed test, so the P-value for this test is calculated as:

P-value=P(z

As the P-value (0.057) is greater than the significance level (0.05), the effect is  not significant.

The null hypothesis failed to be rejected.

There is not enough evidence to support the claim that  the percentage is lower in this district.

7 0
3 years ago
What’s this ????????
Dafna11 [192]

Answer:

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3^-2/w^-6

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Mx + 4y = 3t
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