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Tutor profile: Megan N.

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Megan N.
Doctoral student at the University of Delaware
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Questions

Subject: GRE

TutorMe
Question:

The cost of manufacturing x crayons is 570 + 0.5x. The crayons sell for 10 cents each. What is the minimum number of crayons that need to be sold so that the revenue received recoups the manufacturing cost?

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Megan N.
Answer:

60 crayons

Subject: Psychology

TutorMe
Question:

Make up an operational definition for depression and describe what makes it an operational definition instead of a conceptual definition based on the 2 things that every operational definition needs to include.

Inactive
Megan N.
Answer:

The number of times last week that a person cried or felt sad, as measured via a self-report questionnaire. This qualifies as an operational definition because I specified the type of data to be collected (self-report) and I also used quantification in the definition (number of times).

Subject: Statistics

TutorMe
Question:

What does the concept of power tells us about the results of an experiment?

Inactive
Megan N.
Answer:

It tells you the likelihood of detecting a true difference between the groups that are being studied. This is important because if the null hypothesis is true, but the effect is small, you likely need a lot of power to detect this effect.

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