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inessss [21]
3 years ago
14

How do you write the hypotheses for a significance test?

Advanced Placement (AP)
1 answer:
AVprozaik [17]3 years ago
3 0
All you have to do is rewrite you idea in your hypothesis.
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Please show steps and explain
AlexFokin [52]

Answer:

\frac{n-6}{3n} = \frac{n-5}{3n+1} \\\\\frac{n-6}{3n} - \frac{n-5}{3n+1} = 0\\\\\frac{(3n+1)(n-6)-3n(n-5)}{3n(3n+1)} = 0\\\\(3n+1)(n-6)-3n(n-5) = 0\\\\3n^2-18n+n-6-3n^2+15n=0\\\\3n^2-3n^2-18n+n+15n-6=0\\\\-2n-6=0\\\\2n+6=0\\\\2n=-6\\\\n=-3

You can solve this equation by applying the zero product rule.

Firstly, you equate the expression to 0 in order to combine both fractions into one. As shown in Step 2, you find the LCM of both fractions and multiply accordingly. In this case, the LCM of both fractions is 3n(3n+1). Hence you cross multiply.

Next, you eliminate the denominator in order to solve the equation more conveniently. As you multiply the fraction by the denominator on the LHS, you do that to the RHS as well to maintain balance. 0×3n(3n+1)=0, hence Step 3.

Then, you expand the parentheses using the distributive law of multiplication, resulting in a quadratic equation.

Lastly, you solve the quadratic equation.

The answer is n=-3

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3 years ago
If the bar magnet on the left were broken in half, what statement correctly predicts how the two halves of the magnet would reac
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When the bar magnet is broken in half two resulting halves both have north and south magnetic pole. In the place where it was broken there are opposite magnetic poles.One of two hlaves would be attracted by magnet on the right and another would be reppeled.
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Why is dreaming important and how can that be applied towards animals?
Sliva [168]

Answer: This was curious, because during so-called REM sleep (rapid eye movement), our muscles are usually paralysed. Researchers realised that inducing a similar state in animals could allow them to probe how they dream.

Explanation:

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What is correlated constraints
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The correct answer for the question that is being presented above is this one: "d. provoked domestic debate about its involvement in the internal affairs of other nations." United States annexation of the Philippines (1898) and military involvement in Vietnam (1960s and 1970s) are similar because in each event the United States provoked domestic debate about its involvement in the internal affairs of other nations.<span>
</span>
6 0
3 years ago
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