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tia_tia [17]
3 years ago
6

I think i may have the answer but im not sure. if you answer thanks sm :)

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

Answer:

F

Step-by-step explanation:

3(5) would be the equivalent of 3*5, adding the + n.

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3 years ago
HighTech Inc. randomly tests its employees about company policies. Last year in the 560 random tests conducted, 26 employees fai
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Answer:

The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

560 random tests conducted, 26 employees failed the test. This means that n = 560, \pi = \frac{26}{560} = 0.046

98% confidence level

So \alpha = 0.02, z is the value of Z that has a pvalue of 1 - \frac{0.02}{2} = 0.99, so Z = 2.33.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.046 - 2.33\sqrt{\frac{0.046*0.954}{560}} = 0.025

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.046 + 2.33\sqrt{\frac{0.046*0.954}{560}} = 0.067

The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

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3 years ago
A foreign country uses the stellar as its currency. Before a trip to that​ country, Jon wants to exchange ​$1,500 to stellars. W
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Answer:

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Step-by-step example

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Find the volume of this figure.
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Fraction calculator 66 1/2 - 43=
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Step-by-step explanation:

66\frac{1}{2} - 43 = 47/2

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