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3 years ago

How do u turn a fraction into a percent

2 answers:

5 0

Hello there,
To turn a fraction to a percent, you must multiply 100 to the fraction, since a percent is out of a hundred. For example 1/4 can be changed by doing 1/4*100. Multiply 100 to the numerator(top) and divide that answer to the denominator(bottom). 1*100=100÷4= 25%. Hope this helps!!

Inessa [10]3 years ago

4 0

You multiply both the numerator and the denominator by the number that you need to multiply the denominator by to equal 100. Then your numerator is the percent.

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If the test is done anyway, the null hypothesis failed to be rejected.

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Step-by-step explanation:

The conditions for use of the normal model to represent the distribution of sample proportion are not met, as the affirmative responses are less than 10.

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If the test of hypothesis is done as if the conditiones were met, we know that the claim is that the percentage is lower in this district.

Then, the null and alternative hypothesis are:

$H_0: \pi=0.173\\\\H_a:\pi$

The significance level is 0.05.

The sample has a size n=80.

The sample proportion is p=0.1.

The standard error of the proportion is:

$\sigma_p=\sqrt{\dfrac{\pi(1-\pi)}{n}}=\sqrt{\dfrac{0.173*0.827}{80}}\\\\\\ \sigma_p=\sqrt{0.001788}=0.042$

Then, we can calculate the z-statistic as:

$z=\dfrac{p-\pi+0.5/n}{\sigma_p}=\dfrac{0.1-0.173+0.5/80}{0.042}=\dfrac{-0.067}{0.042}=-1.578$

This test is a left-tailed test, so the P-value for this test is calculated as:

$P-value=P(z$

As the P-value (0.057) is greater than the significance level (0.05), the effect is not significant.

The null hypothesis failed to be rejected.

There is not enough evidence to support the claim that the percentage is lower in this district.

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