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olga_2 [115]
3 years ago
13

Help please help me

Mathematics
1 answer:
asambeis [7]3 years ago
8 0

Answer:

Step-by-step explanation:

Range = maximum value - minimum value

= 25 - 6 = 19

Option D is the correct answer

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Using the z-distribution, since the p-value of the test is of 0.057 > 0.05, there is not enough evidence that the population proportion of successes does not equal 0.50.

<h3>What are the hypotheses tested?</h3>

At the null hypotheses, we test if the proportion of successes equals 0.5, hence:

H_0: p = 0.5

At the alternative hypotheses, we test if it does not equal, hence:

H_1: p \neq 0.5

<h3>What is the test statistic?</h3>

The test statistic is given by:

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

In which:

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For this problem, the parameters are given by:

n = 40, \overline{p} = \frac{14}{40} = 0.35, p = 0.5

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

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More can be learned about the z-distribution at brainly.com/question/16313918

#SPJ4

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