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Galina-37 [17]
3 years ago
5

A class did an experiment to see if students could taste water and identify bottled water versus tap water. Each student was pre

sented with three cups of water—one of which contained bottled water—and they were directed to identify which cup they thought contained bottled water. The class wants to test if they correctly identified the bottled water significantly better than they would have done by simply guessing.
Let p represent the proportion of these students that would correctly identify the bottled water.
Which of the following is an appropriate set of hypotheses for their significance test?

ANSWER:
H0​:p=1/3
Ha​:p>1/3
Mathematics
1 answer:
Leona [35]3 years ago
4 0

Answer:

A

Step-by-step explanation:

Kahn

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Segment XY bisects angle WXZ and angle mZXY = 37 degrees. Find angle mWXY and angle mZXW
Vadim26 [7]

we know that

The angle bisector, is the line or line segment that divides the angle into two equal parts.

So

in this problem

m∠ZXW=m∠WXY+m∠ZXY

m∠WXY=m∠ZXY

Part a) <u>Find the value of m∠WXY</u>

m∠ZXY=37°-----> given value

so

m∠WXY=m∠ZXY=37°

therefore

<u>the answer part a)</u>

The measure of angle WXY is equal to 37°

Part b) <u>Find the value of m∠ZXW</u>

m∠ZXW=m∠WXY+m∠ZXY

m∠ZXW=37°+37°=74°

therefore

<u>the answer part b) is</u>

the measure of angle ZXW is 74 degrees

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3 years ago
1. suppose you purchased a new car for
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If the value of the car decreases by 8% every year it would take 13 years for the car to be worth
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2 years ago
Reporting Category: Geometry Standard: 10 G.3 Recognize and solve problems involving angles formed by transversals of coplanar l
Alexxx [7]
The measure in degrees would be 15<span />
4 0
3 years ago
Dalvin answered 51 questions correctly on his multiple choice science final and earned a grade of 85%. How many total questions
Leona [35]

Answer:

60

Step-by-step explanation:

Divide the number of questions answered correctly by his percentage

51 / 85 = 0.6

Now multiply that answer by 100 to see how many questions are on the quiz

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Check your work by dividing that number by the number he answered correctly

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Find all solutions to the equation (sinx-cosx)^2=1
svetoff [14.1K]

Answer:

x=\dfrac{\pi k}{2},\ k\in Z.

Step-by-step explanation:

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Since

\sin^2 x+\cos^2 x=1

and

2\sin x\cos x=\sin 2x,

we have

1-\sin 2x=1,\\ \\\sin 2x=0,\\ \\2x=\pi k,\ k\in Z,\\ \\x=\dfrac{\pi k}{2},\ k\in Z.

8 0
4 years ago
Read 2 more answers
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