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igor_vitrenko [27]

3 years ago

6

a bell rings every 8 miniutes and another 10 minutes. they both ring together at midnight. what time will they both ring at the

same time again

2 answers:

Verizon [17]3 years ago

6 0

$\hbox{lcm} (8,10)=40$

They will ring at the same time again 40 minutes later that is at 0:40.

djyliett [7]3 years ago

4 0

12.40 am is the next time they both ring at the same time

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In the 2009 General Social Survey, respondents were asked if they favored or opposed death penalty for people convicted of murde

sleet_krkn [62]

Answer:

The calculated 99% confidence interval is wider than the 95% confidence interval.

Step-by-step explanation:

We are given the following in the question:

95% confidence interval for the population proportion

(0.65, 0.69)

Let $\hat{p}$ be the sample proportion

Confidence interval:

$p \pm z_{stat}(\text{Standard error})$

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

Let x be the standard error, then, we can write

$\hat{p} - 1.96x = 0.65\\\hat{p}+1.96x = 0.69$

Solving the two equations, we get,

$2\hat{p} = 0.65 + 0.69\\\\\hat{p} = \dfrac{1.34}{2} = 0.67\\\\x = \dfrac{0.69 - 0.67}{1.96} \approx 0.01$

99% Confidence interval:

$p \pm z_{stat}(\text{Standard error})$

$z_{critical}\text{ at}~\alpha_{0.01} = 2.58$

Putting values, we get,

$0.67 \pm 2.58(0.01)\\=0.67 \pm 0.0258\\=(0.6442,0.6958)$

Thus, the calculated 99% confidence interval is wider than the 95% confidence interval .

4 0

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Natalija [7]

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3 years ago

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torisob [31]

Answer:

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Step-by-step explanation:

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boyakko [2]

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6 0

3 years ago