2 years ago

What is the domain of the function y=2 square root x-6

Mathematics

1 answer:

beks73 [17]2 years ago

5 0

Answer:

6 ≤ x < ∞

Step-by-step explanation:

interval notation: [6, ∞)

set builder notation: {x|x ≥ 6}

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3 1/2 hours

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2 years ago

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A university is interested in promoting graduates of its honors program by establishing that the mean GPA of these graduates exc

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Step-by-step explanation:

Population Mean (u) = 3.50

Sample (n)= 36

Sample mean (x) = 3.60

Population standard deviation (s)= 0.40

Test statistics:

(Null hypothesis) H0: u= 3.5 (Population mean is equal to 3.5)

(Alternate hypothesis) H1: u> 3.5 (Population mean is greater than 3.5)

Z= $\frac{x-u}{\frac{s}{\sqrt{n} } }$ = $\frac{3.60-3.50}{\frac{0.4}{\sqrt{36} } }$ = $\frac{0.10}{0.067}$ = 1.5

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Since, Z value is less than critical Z value that is Z<1.645

We cannot reject null hypothesis

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