3 years ago

What is statistical power and how would you calculate it?

1 answer:

3 0

Answer:

The statistical power of a hypothesis test is the probability of detecting an effect, if there is a true effect present to detect. Power can be calculated and reported for a completed experiment to comment on the confidence one might have in the conclusions drawn from the results of the study.

I hope it's helpful!

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Look at this graph: What is the slope? Simplify your answer and write it as a proper fraction, improper fraction, or integer.

Mariana [72]

Answer:

7/8

Step-by-step explanation:

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3 years ago

A car is towed using a force of 1600N. The rope used to pull the car makes an angle of 25∘ with the horizontal. Find the work do

mezya [45]

Answer: 2900185 Joules

Step-by-step explanation:

Force used to tow the car is 1600N

Angle(α)= 25

Displacement = 2km

Recall that 1km= 1000m

Therefore 2km= 2000m

Workdone= FdCos α

W= 1600 * 2000 * cos 25

W=2900184.919

W= 2900185 Nm(when approximated to the nearest integer)

Since 1J = 1Nm

Work done = 2900185 J

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3 years ago

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Alex_Xolod [135]

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Which is the equation of a line that has a slope of <br> and passes through point (–3, –1)?

Leno4ka [110]

There's no slope, so it's impossible to answer your question. I'm sorry.

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3 years ago

What did Archimedes discover about the centroid of a triangle? (Site 1)

Anna007 [38]

Answer:

Archimedes showed that the point where the medians are concurrent (the centroid) is the center of gravity of a triangular shape of uniform thickness and density

Step-by-step explanation:

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