2 years ago

In a class full of men and women,

Mathematics

1 answer:

Vsevolod [243]2 years ago

8 0

Answer:

Step-by-step explanation:

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krok68 [10]

Answer:

Step-by-step explanation:

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2 years ago

Renee wants to estimate the percentage of people who lease a car. She surveys 150 individuals and finds that 33 lease a car. Fin

Oduvanchick [21]

Answer: $(0.164,\ 0.276)$

Step-by-step explanation:

The confidence interval of population proportion is given by :-

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

Given : Sample size : $n=150$

The proportion of individuals lease a car : $hat{p}=\dfrac{33}{150}=0.22$

Significance level : $\alpha: 1-0.9=0.1$

Critical value : $z_{\alpha/2}=1.645$

Then, the confidence interval of population proportion is given by :-

$0.22\pm (1.645)\sqrt{\dfrac{0.22(1-0.22)}{150}}\\\\\approx0.22\pm0.056=(0.164,\ 0.276)$

Hence, the confidence interval for the population proportion with a 90% confidence level= $(0.164,\ 0.276)$

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3 years ago

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Snowcat [4.5K]

Answer:

The answer is D

Step-by-step explanation:

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2 years ago

12/100 + /100 = .35 + .12 (Solve to get X) (?)

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2 years ago

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A school had an election where the candidates received votes in the ratio 1:2:3. If the winning candidate received 210 votes, ho

AVprozaik [17]

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3 years ago