3 years ago

PLEASE HELP I NEED YOU

1 answer:

4 0

The vertical length of the red triangle is 2, and the horizontal length of the red triangle is 3. So, the ratio of the vertical length to the horizontal length is 2:3. This can not be simplified, so it is your final answer.

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Please help i’ll give you brainliest and thanks

agasfer [191]

Answer:

The first one is 36 the second one is 48 and the last one is 60

Step-by-step explanation:

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6 0

3 years ago

Consider estimating a population proportion p. What is the most conservative sample size (erring on the large size) required in

just olya [345]

Answer:

The most conservative sample size is 2401.

Step-by-step explanation:

We are given the following in the question:

We are not given any approximation of s]ample proportion, thus,

$\hat{p} = 0.5$

We have to construct a 95% confidence interval.

Margin of error = 2% = 0.02

Formula for margin of error =

$z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get,

$0.02 = 1.96\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\0.02 = 1.96\times \sqrt{\dfrac{0.5(1-0.5)}{n}}\\\\\sqrt{n} = 1.96\times \dfrac{\sqrt{0.5(1-0.5)}}{0.02}\\\\\sqrt{n}=49\\n = 2401$