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mylen [45]
3 years ago
12

If he eats half of the total, how much did he eat?

Mathematics
2 answers:
Gekata [30.6K]3 years ago
4 0
He ate half, because half of the total of half!!!!!!!
Doss [256]3 years ago
3 0
Half half half i think..
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Triangle Angle-Sum Theorem what is the value of x?
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Answer:

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Step-by-step explanation:

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The producer of a certain bottling equipment claims that the variance of all its filled bottles is .027 or less. A sample of 30
o-na [289]

Answer:

p_v = P(\chi^2_{29}>42.963)=1-0.954=0.0459

b. between .025 and .05

Step-by-step explanation:

Previous concepts and notation

The chi-square test is used to check if the standard deviation of a population is equal to a specified value. We can conduct the test "two-sided test or a one-sided test".

\bar X represent the sample mean

n = 30 sample size

s= 0.2 represent the sample deviation

\sigma_o =\sqrt{0.027}=0.164 the value that we want to test

p_v represent the p value for the test

t represent the statistic

\alpha= significance level

State the null and alternative hypothesis

On this case we want to check if the population standard deviation is less than 0.027, so the system of hypothesis are:

H0: \sigma \leq 0.027

H1: \sigma >0.027

In order to check the hypothesis we need to calculate the statistic given by the following formula:

t=(n-1) [\frac{s}{\sigma_o}]^2

This statistic have a Chi Square distribution distribution with n-1 degrees of freedom.

What is the value of your test statistic?

Now we have everything to replace into the formula for the statistic and we got:

t=(30-1) [\frac{0.2}{0.164}]^2 =42.963

What is the approximate p-value of the test?

The degrees of freedom are given by:

df=n-1= 30-1=29

For this case since we have a right tailed test the p value is given by:

p_v = P(\chi^2_{29}>42.963)=1-0.954=0.0459

And the best option would be:

b. between .025 and .05

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Step-by-step explanation:

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the correct pattern should be

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Step-by-step explanation:

The hundreds place is less than 5 so you round down.

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Read 2 more answers
Express 45000 in scientific notation
Ne4ueva [31]
4.5 x 10 to the power of 4
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3 years ago
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