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3 years ago

Whats 0.68% of 425show your work

Mathematics

1 answer:

d1i1m1o1n [39]3 years ago

3 0

Find 0.68% as a fraction:

$\frac{0.68}{100}=\frac{68}{10000}=\frac{17}{2500}$

So you multiply that by 425 to get your value:

$\frac{17}{2500}*\frac{425}{1}=\frac{17}{100}*\frac{17}{1}=\frac{17*17}{100}=\frac{289}{100}$

Your answer is $\frac{289}{100}$ or, in decimal format, $2.89$ .

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Answer:

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$\bar X_2$ represent the sample for the sample 2

$s_1$ represent the deviation for the sample 1

$s_2$ represent the deviation for the sample 2

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And on this case if we create the system of hypothesis we have this:

Null hypothesis : $\mu_1 -\mu_2 \leq 0$

Alternative hypothesis: $\mu_1 -\mu_2 >0$

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

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Solution to the problem

We assume that we have the following statistics:

$\bar X_1$ represent the sample for the sample 1

$\bar X_2$ represent the sample for the sample 2

$s_1$ represent the deviation for the sample 1

$s_2$ represent the deviation for the sample 2

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$n_2 = 81$ represent the sample size for the group 2

And on this case if we create the system of hypothesis we have this:

Null hypothesis : $\mu_1 -\mu_2 \leq 0$

Alternative hypothesis: $\mu_1 -\mu_2 >0$

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