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goldenfox [79]
2 years ago
10

A researcher determines thatχ2 = 3.76to test for significance for a phi correlation coefficient. What was the decision for this

phi correlation test?a) Retain the null hypothesis.b) Reject the null hypothesis c) There is not enough information to answer this question.
Mathematics
1 answer:
Dafna11 [192]2 years ago
6 0

Answer:

C. There is not enough information to answer this question

Step-by-step explanation:

Conclusion cannot be made whether to retain or reject the null hypothesis because the information given is not sufficient

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Answer:

B. 80 cm of chain weighs 2 kg.

Step-by-step explanation:

In order to choose the correct answer, we need to define the comparative relation between the length and weight of the chain. We will do this by performing the simple operation of division.

It is easier to divide the larger number by the smaller and that is what we will show here (although <em>you can do as you wish and still get the same result</em> - it's math!):

320 ÷ 8 = 40

The result we got is 40. This means that <u>the length of the chain is equal to the value of forty of its weights!</u> And this will be the operation we will perform in order to determine the right answer:

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B) Does 2 (kg) multiplied by 40 equal 80 (cm)? <u>Yes, this answer is correct!</u>

Just in case, we will perform this action with the rest of the possible choices:

C) 4 kg × 40 = 160 and NOT 80 cm.

D) 2 kg × 40 = 80 and NOT 160 cm.

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2 years ago
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Answer:

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Step-by-step explanation:

This situation calls for an observational study.  Unfortunately, cardiovascular health is difficult to measure unless one defines some "health scale" so that health could be roughly quantitized.

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86 is the score that Maurice must get to average his score to 80

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