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sweet-ann [11.9K]
3 years ago
13

Simplify the fraction 15/20

Mathematics
1 answer:
Bad White [126]3 years ago
5 0

15/20

Figure out what number to use for simplify

Which is 5

Divide the numerator and denominator by 5

15/5=3

20/5=4

Answer:3/4

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Following are the answer to this question:

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Given:

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The mean  \bar X = 7.3 days.  

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     = 30-1 \\      =29

The importance level is \alpha = 0.10  

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= tinv (\ probility, \ freedom \ level) \\= tinv (0.10,29) \\ =1.699127\\ =  t_{al(2x-1)}= 1.699127

The method for calculating the trust interval of 90 percent for the true population means is:

Formula:

\bar X - t_{al 2,x-1} \frac{S}{\sqrt{n}} \leq \mu \leq \bar X+ t_{al 2,x-1}   \frac{S}{\sqrt{n}}

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It can rest assured that the true people needs that middle managers are unavailable from 5,37 to 9,23 during the years.

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