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Anettt [7]
3 years ago
13

Please can someone help me with this !!!!!!!

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
4 0

Answer: 1 : 20%

2 : 80%

3 : -90% (negative 90%), if no negatives are allowed, than it is a 90% decrease.

4 : $90

5: $31.50

Step-by-step explanation:

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Answer:

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The p value for this case would be:

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Step-by-step explanation:

Information given

n=100 represent the random sample taken

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z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true proportion is equatl to 0.39 or not, the system of hypothesis are.:  

Null hypothesis:p=0.39  

Alternative hypothesis:p \neq 0.39  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info we got:

z=\frac{0.36 -0.39}{\sqrt{\frac{0.39(1-0.39)}{100}}}=-0.615  

The p value for this case would be:

p_v =2*P(z  

For this case since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is not different from 0.39

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Step-by-step explanation:

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Answer:

The correct answer is [C.) 0.04r + 5.00}

Step-by-step explanation:

hope this hlps

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