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3 years ago

Which one???????????????????

Mathematics

1 answer:

8090 [49]3 years ago

6 0

Multiply by -4 on both sides.

this makes z<-8

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An article presents voltage measurements for a sample of 66 industrial networks in Estonia. Assume the rated voltage for these n

kramer

Answer:

We accept the null hypothesis and conclude that voltage for these networks is 232 V.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 232 V

Sample mean, $\bar{x}$ = 231.5 V

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Sample standard deviation, s = 2.19 V

Alpha, α = 0.05

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2 years ago

Help please and thank you

marysya [2.9K]

Answer:

Step-by-step explanation:

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