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3 years ago

14

TRUE OR FALSE?

2 answers:

Komok [63]3 years ago

8 0

<span>This is false. Many natural remedies are not as useful as people would have you believe and some are not useful at all. They are often not tested and when they are there are no results that confirm that. Things like honey are believed to be much much healthier than it actually is because of this as it has been transfered from generation to generation.</span>

sashaice [31]3 years ago

3 0

The answer is false on Edgenuity

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Every user of statistics should understand the distinction between statistical significance and practical importance. A sufficie

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Answer:

The test statistic value is, <em>z</em> = 0.57.

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Explanation:

A one-sided, single mean <em>z</em>-test can be performed to determine whether the mean caloric intake increased from 2403.7 kcal/day or not.

The hypothesis is defined as:

<em>H₀</em>: The mean caloric intake did not increase, i.e. <em>μ</em> = 2403.7.

<em>Hₐ</em>: The mean caloric intake did increase, i.e. <em>μ</em> > 2403.7.

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$\bar x = 2453.7\ kcal/day\\n=100\\\sigma = 880\ kcal/day$

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$z=\frac{\bar x-\mu}{\sigma/\sqrt{n}}=\frac{2453.7-2403.7}{880/\sqrt{100}}=0.5682\approx0.57$

The test statistic value is, <em>z</em> = 0.57.

Compute the <em>p</em>-value of the test statistic as follows:

$p-value=P(Z>0.57)=1-P(Z$

*Use a standard normal table.

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