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kramer
1 year ago
8

a pharmaceutical company manufactures medicine to reduce pain caused by migraine headaches. the company is investigating whether

a new medicine is more effective in reducing pain than the current medicine. a random sample of 500 participants who experience migraines was selected, and the participants were randomly assigned to one of two groups of equal size. the first group received the current medicine and the second group received the new medicine. when a participant experienced a migraine, he or she was instructed to take the medicine and, 15 minutes after taking the medicine, to rate the pain relief on a scale from 1 to 10, with 1 being no relief to 10 being complete relief. at the end of six months, the average pain relief for each participant was calculated. which of the following is the best description of the study?
Mathematics
1 answer:
Morgarella [4.7K]1 year ago
8 0

The experiment employs a completely random design.

The random selection of sample participants to derive conclusions and assumptions about an entire population is known as probability or random sampling.

A random sample of 500 participants was chosen, and they were randomly assigned to one of two groups of equal size. As a result, the best description of the study is an experiment with a completely randomised design because there is no pattern in assigning the medicine and there was a simple random division from the total group, with no other specific characteristic.

As a result, the experiment employs a completely randomised design.

To learn more about random sampling refer here

brainly.com/question/12719645

#SPJ4

your question is incomplete, please write the complete the question.

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Murrr4er [49]

Answer:

The equation in slope-intercept form is y=-2x+6.

The equation in standard form is 2x+y=6.

The equation in point-slope form is y-2=-2(x-2).

Step-by-step explanation:

The slope-intercept form of a line is y=mx+b where m is the slope and b is the y-intercept.

Parallel lines will have the same slope and different y-intercept.

Anyways the slope of y=-2x+1 is -2.

So the equation of our line we are looking for is -2.

So we know our equation is in the form y=-2x+b.

We must inf b using y=-2x+b with (x,y)=(2,2).

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2=-2(2)+b

2=-4+b

Add 4 on both sides:

2+4=b

Simplify:

6=b

The equation is y=-2x+6.

Now it didn't say what form it wanted.

There are some forms I can give you like standard and point-slope form.

There is also general form but it is not too much different from standard form.

Standard form is ax+by=c where a,b, and c are integers if possible.

Point-slope form is y-y1=m(x-x1) where (x1,y1) is a point on the line and m is the slope.

So let's go for standard form (ax+by=c) first:

y=-2x+6

add 2x on both sides:

2x+y=6

This is standard form because it is in the form

ax+by=c.

Ok we know point (2,2) is on our line and we also know we have slope,m, is -2.

Point-slope form is

y-y1=m(x-x1)

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