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3 years ago

What minus what equals 500

Mathematics

2 answers:

Evgesh-ka [11]3 years ago

8 0

There are many things that will equal to 500

For Example: 1000 - 500 = 500
Or 800 - 300 = 500

Nadya [2.5K]3 years ago

5 0

There are multiple different ways to do this.
For example: 1000 - 500 = 500. Or even 501 - 1 = 500

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Compressed Soil 2.85 2.66 3 2.82 2.76 2.81 2.78 3.08 2.94 2.86 3.08 2.82 2.78 2.98 3.00 2.78 2.96 2.90 3.18 3.16

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$s_p=\sqrt{\frac{(n_1-1)s_1^2(n_2-1)s_2^2}{n_1+n_2-2} } \\\\=0.1943$

So standard error for difference in population mean is

$s_{\bar x_1 - \bar x_2} = \sqrt{\frac{s_p^2}{n_1}+\frac{s_p^2}{n_2} } \\\\=0.0623$

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so t-critical value is 2.715.

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$\mu_{1} - \mu_{2}$ will be

$( \bar x_1 - \bar x_2) \pm t_{critical}*s_{\bar x_1 - \bar x_2}$

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So required confidence interval is (0.2103 , 0.5483).

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3 years ago