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fgiga [73]
3 years ago
7

What is the value of 2X^2 +4y if x=-2 y =3

Mathematics
2 answers:
Ulleksa [173]3 years ago
8 0

Your answer is 4 if you need to know how ask me

SpyIntel [72]3 years ago
7 0

2X^2 + 4y = 2 * -2^2 + 4 * 3

Your answer is 4.

If this is incorrect, then I am sorry.

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Since we FAIL to reject the null hypothesis, then if we construct an interval of 95% of confidence, the 0 should be included, because on the test hypothesis we conclude that there would be no significant difference between the means of the two groups analyzed, and the results obtained on the hypothesis test needs to be consistent with the confidence interval.

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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".  

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

\bar x_{meat}=111.7 represent the sample mean of calories for the meat hot dogs

\bar x_{beef}=135.4 represent the sample mean of calories for the beef hot dogs

The system of hypothesis on this case would be:

Null hypothesis: \mu_{meat}-\mu_{beef}=0

Alternative hypothesis: \mu_{meat}-\mu_{beef}\neq 0

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