2 years ago

Please help it is due today

Mathematics

2 answers:

Zolol [24]2 years ago

4 0

Answer:

45= p x 60, 0.75

Step-by-step explanation:

To solve the equation, you just do 45/60 this will give you 0.75.

nata0808 [166]2 years ago

3 0

Step-by-step explanation:

because i did this and i pass this

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avanturin [10]

Answer:

We are 95% confident that the true proportion of TV audience is between 65.15% and 65.85%

Step-by-step explanation:

-From the given information, $\hat p=0.65$ .

-We calculate the confidence interval using this value at 95% confidence level:

$CI=\hat p\pm z \sqrt{\frac{\hat p(1-\hat p)}{n}}\\\\\\=0.65\pm 1.96\times \sqrt{\frac{0.65\times 0.35}{12000}}\\\\\\=0.65\pm 0.0085\\\\\\=[0.6415,0.6585]$

So, the 95% confidence interval is (0.6515,0.6585).

Hence, we are 95% confident that the true proportion of TV audience is between 65.15% and 65.85%.

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2 years ago

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marshall27 [118]

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