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Schach [20]
3 years ago
7

Helpppppp mathhhhhhhhh

Mathematics
1 answer:
creativ13 [48]3 years ago
8 0
I hope this helps you




cos71=15/P



0.325=15/P



P=46.15
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Step-by-step explanation:

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A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

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\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}   (1)

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Step-by-step explanation:

see pic

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