HELP I DONT UNDERSTAND 5 AND 6

Mathematics

1 answer:

Anika [276]3 years ago

7 0

It does represent the function because each out put has only one input

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Which number line shows all the values of a that make the inequality - 3x +1 < 7 true?

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Answer:

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Step-by-step explanation:

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Andreas93 [3]

Answer:

$0.192 - 1.645\sqrt{\frac{0.192(1-0.192)}{250}}=0.151$

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Step-by-step explanation:

Information given

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In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . And the critical value would be given by: