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3 years ago

Help me with this please

Mathematics

1 answer:

IrinaVladis [17]3 years ago

8 0

Answer:

x = 138

Step-by-step explanation:

Exterior angle thm:

68 + 70 = x

x = 138

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Brrunno [24]

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Step-by-step explanation:

The confidence interval for population proportion is given by :-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

Given : $\hat{p} =0.7$ ; $n=110$

Significance level : $1-0.90=0.1$

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Now, a 90% confidence interval for population proportion will be :-

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