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Mars2501 [29]
3 years ago
8

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!​

Mathematics
1 answer:
NeTakaya3 years ago
5 0

Answer:

\sqrt{193}

Step-by-step explanation:

Given,

Height of the triangle = 7

Base of the triangle = 12

Hypotenuse of the triangle = x

Therefore, According to Pythagoras Theorem,

{(hypotenuse)}^{2}  =  {(base)}^{2}  +  {(height)}^{2}

{x}^{2}  =  {12}^{2}  +  {7}^{2}

=  >  {x}^{2}  = 144 + 49

=  >  {x}^{2}  = 193

=  > x =  \sqrt{193} (ans)

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g A programmer plans to develop a new software system. In planning for the operating system that he will​ use, he needs to estim
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a) n= 1045 computers

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Step-by-step explanation:

Hello!

The variable of interest is

X: Number of computers that use the new operating system.

You need to find the best sample size to take so that the proportion of computers that use the new operating system can be estimated with a 99% CI and a margin of error no greater than 4%.

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a) In this item there is no known value for the sample proportion (p') when something like this happens, you have to assume the "worst-case scenario" that is, that the proportion of success and failure of the trial are the same, i.e. p'=q'=0.5

The margin of error of the interval is:

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b) This time there is a known value for the sample proportion: p'= 0.88, using the same confidence level and required margin of error:

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c) The additional information in part b affected the required sample size, it was drastically decreased in comparison with the sample size calculated in a).

I hope it helps!

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