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svet-max [94.6K]
3 years ago
12

Please help i've been stuck on this question alll day

Mathematics
2 answers:
Elis [28]3 years ago
7 0

f(x) = 3^x

when f(x) = 9 then

9 = 3^x

3^2 = 3^x

2 = x

or

x = 2

Answer

A. 2

Nastasia [14]3 years ago
3 0

A) 2 because the equation is 3^x and what make 9 from 3, 3 x 3, or three squared.

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A professor wants to estimate the average time it takes his students to finish a computer project. Based on previous evidence, h
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Answer:

A sample size of 3 is required.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

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He would like to be 96% confident that his estimate is within 5 hours of the true population mean. Use RStudio to determine how large of a sample size is required without rounding any interim calculations.

The sample size needed is of n, and n is found when M = 5. So

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5 = 2.054\frac{3.6}{\sqrt{n}}

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3 years ago
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