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storchak [24]
3 years ago
11

A researcher wanted to know if there was a difference in fall and spring semester tuition at universities across the U.S. His st

udy took a random sample of 200 universities, had a p-value of 0.013 and found that the tuition had increased by an average of $0.35 between fall and spring semester. What can be said about the results of this study
Mathematics
1 answer:
Pavel [41]3 years ago
8 0

Answer:

The given parameters of the study are;

The number of people in the sample, n = 200

The p-value = 0.013

The average increase between fall and spring semester = $0.35

Therefore, we have;

Given that the p-value is less than 0.05, we reject the null hypothesis, and that there is significant statistical evidence to suggest that there is a difference between the fall and spring semester tuition at universities across the U.S.

Step-by-step explanation:

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The hypotenuse of a 45°-45°-90° triangle measures 128 cm. A right triangle is shown. The length of the hypotenuse is 128 centime
Aleks [24]

Answer:

64√2 or 64 StartRoot 2 EndRoot

Step-by-step explanation:

A 45-45-90 traingle is a special traingle.  Let's say one of the leg of the triangle is x. The other one is also x because of the isosocles triangle theorem.  Therefore, using the pytagorean theorem, you find that x^2+x^2=c^2.  2(x)^2=c^2.  You then square root both sides and get c= x√2.  

Therefore, the two legs are x and the hypotenuse is x√2.  x√2=128 because the question says that the hypotenuse is 128.  Solve for x by dividing both sides by √2.  X=128/√2.  You rationalize it by multiplying the numberator and denominator of the fraction by √2.  √2*√2= 2.

X=(128√2)/2= 64√2 cm.

Since X is the leg, the answer would be 64√2

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3 years ago
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Answer:

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Step-by-step explanation:

7 0
3 years ago
On Saturday Ricardo drank a total of 40 fluid ounces of water.If he drank''m''fluid ounces of water that morning,which equation
Varvara68 [4.7K]

Answer:

n = ( 40 - m )

Step-by-step explanation:

On a particular day, Ricardo drank a total of 40 fluid ounces of water.

If he drank m fluid ounces of water in the morning of that day, then the number of fluid ounces of water he drank the rest of the day is given by (40 - m) fluid ounces.

If n represents the number of fluid ounces water that he drank the rest of the day, then we can write the equation as  

n = ( 40 - m )

Therefore, the above equation can be used to find n. (Answer)

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3 years ago
Qs bisect PQR and MRSQ =71
Soloha48 [4]

Answer: If ∡PQR = 82°, and the ray QS bisects it, it cuts ∡PQR into two equal halves, ∡PQS and ∡RQS, each of which is then 82/2, or 41°.

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4 years ago
A stack of 12 pennies is 18.24 millimeters high how thick is each penny how thick would a stack of 20 pennies be ?
Dmitry_Shevchenko [17]

Answer:

each penny is 1.52 millimeters high, and a stack of 20 pennies is 30.4 millimeters high

Step-by-step explanation:

18.24÷12= 1.52

1.52×20= 30.4

3 0
3 years ago
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