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Rzqust [24]
3 years ago
8

caffeine takes a certain amount of time to leave your system if you drink 3 cups of coffee in the morning, the function that rep

resents the amount of caffeine remaining in your body after drinking the coffee is given by (gt)=130(.8346) where is t time in hours.
Mathematics
2 answers:
k0ka [10]3 years ago
6 0

Answer:

3

Step-by-step explanation:

Gwar [14]3 years ago
3 0

Answer:

What's the question you're asking im very confused of what you're trying to ask

Step-by-step explanation:

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15(3y+1)

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when I find out the two others ill edit this,sorry i'm kinda slow lol

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4 0
3 years ago
An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic. Step 2 of 2 : S
ziro4ka [17]

Answer:

The 85% onfidence interval for the population proportion of new car buyers who prefer foreign cars over domestic cars is (0.151, 0.205).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

Sample of 421 new car buyers, 75 preferred foreign cars. So n = 421, \pi = \frac{75}{421} = 0.178

85% confidence level

So \alpha = 0.15, z is the value of Z that has a pvalue of 1 - \frac{0.15}{2} = 0.925, so Z = 1.44.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.178 - 1.44\sqrt{\frac{0.178*0.822}{421}} = 0.151

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.178 + 1.44\sqrt{\frac{0.178*0.822}{421}} = 0.205

The 85% onfidence interval for the population proportion of new car buyers who prefer foreign cars over domestic cars is (0.151, 0.205).

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2 years ago
What is the common denominator as a fraction of 1/5
andrezito [222]
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