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Veronika [31]
2 years ago
13

Plssssssssssssssssssssssssssssssssssssssssssssssss

Mathematics
2 answers:
larisa86 [58]2 years ago
7 0

Answer:

Assume that each person gets an even share of the trail mix.

A portion that each person would get would be \frac{1 pounds}{10persons}

\frac{1/2 pound}{5people} = (\frac{1}{2} \frac{1}{5} ) \frac{pound}{people} = \frac{1}{10}

Hope this helps!!

meriva2 years ago
4 0

Answer:

I don't know, ask someone else

Step-by-step explanation:

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In recent years more people have been working past the age of 65. In 2005, 27% of people aged 65–69 worked. A recent report from
Taya2010 [7]

Answer:

a) The point estimate of the proportion of people aged 65–69 who are working is p=0.3 or 30%.

b) We can express this null and alternative hypothesis as:

H_0: \pi=0.27\\H_1:\pi\neq0.27

c) We conclude that there is not enough evidence that the proportion of people aged 65–69 who are working has increased from 2005.

Step-by-step explanation:

a) Develop a point estimate of the proportion of people aged 65–69 who are working

If we take into account the sample taken, the point estimate is

p=\frac{180}{600} =0.3

b) Set up a hypothesis test so that the rejection of h0 will allow you to conclude that theproportion of people aged 65–69 working has increased from 2005

To conclude some claim, we have to reject the null hypothesis. In this case, to claim that the proportion has changed and the mean is no longer 27%, we have to reject the null hypotesis that π=0.27.

We can express this null and alternative hypothesis as:

H_0: \pi=0.27\\H_1:\pi\neq0.27

c) Conduct your hypothesis test using α=0.05. What is your conclusion?

First we calculate the standard deviation, as we will need it to calculate the test statistic:

\sigma=\sqrt{\frac{\pi(1-\pi)}{N} } =\sqrt{\frac{0.27(1-0.27)}{600} }=0.01812

In this case, we have a test statistic of

z=\frac{p-\pi-0.5/N}{\sigma} =\frac{0.3-0.27-0.5/600}{0.01812}=1.61

If we take into account that it is a two-tailed test, P-value for z=1.61 is P=0.1074.

As the P-value is bigger than the significance level, the effect is not statistically significant, so the hypothesis can not be rejected.

We conclude that there is not enough evidence that the proportion of people aged 65–69 who are working has increased from 2005.

8 0
3 years ago
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If |n| is a positive number, then n is a negative number. Which of the following would be a counterexample?
andreyandreev [35.5K]

A counterexample for the following would be D, because it is the only positive number, which is opposite of a negative number.

5 0
3 years ago
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Alex777 [14]
If you would like to know the value of the larger number, you can calculate this using the following steps:

2 ... 3
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2 * x = 3 * 18    /2
x = 3 * 18 / 2
x = 27

The correct result would be 27.
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2 years ago
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Can someone explain to me why this is right?
Flauer [41]
Hello!

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