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defon
3 years ago
8

What is the solution to this inequality 3n≥45

Mathematics
1 answer:
Crank3 years ago
6 0

Answer:

n≥15

Step-by-step explanation:

3n≥45

/3    /3

n≥15

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Answer:

The 95 % confidence interval of the population mean for the weights of adult elephants

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Step-by-step explanation:

<u>Explanation</u>:-

A sample of 7 adult elephants had an average weight of 11,647 pounds

size of the sample 'n' =7

The mean of the sample x⁻ = 11,647 pounds

The standard deviation of the sample 'S' = 24 pounds

<u>Step(ii):</u>-

The 95 % confidence interval of the population mean for the weights of adult elephants

(x^{-} - t_{0.95} \frac{S}{\sqrt{n} } , x^{-} + t_{0.95} \frac{S}{\sqrt{n} } )

The degrees of freedom γ =n-1 = 7-1=6

t₆ = 1.943

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<u>Conclusion</u>:-

The 95 % confidence interval of the population mean for the weights of adult elephants

(11,629 , 11,665)

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