Mathematics High School

An experiment to test the effectiveness of regular treatments with fluoride varnish to reduce tooth decay involved 36 volunteers who had half of their teeth (the right side or left side, determined by a coin flip) painted with a fluoride varnish every six month for 5 years. At the end of the treatments, the number of new cavities during the treatment period was compared on treatment (fluoride varnish) side versus the control (no fluoride varnish) side. The appropriate statistical test for analyzing the results of this experiment is

Answers

Answer 1

Answer:

One-sample t-test on paired data.

Step-by-step explanation:

Here, two different measures or reading were obtained for the two treatment (fluoride vanish) and the control (no fluoride vanish). However, this two measurement were obtained from each of the observations or subjects, hence why it is called one sample t-test on paired data. This would allow the effectiveness of the floiride vanish treatment on each the subjects teeth as we'll have two different data (fluoride vanish treatment) and control treatment on each the subjects employed for the study.

Related Questions

I just need help on these two questions ​

Answers

Answer:

Q1) y= 2

Q2) y= 4

Step-by-step explanation:

Q1) If you sub in x as -1, 2 to the power of -1 is 0.5. You always solve the power first, not the multiplication. So then you do 0.5 times 4 and you get 2.

Q2) If you sub in x as 0, anything to the power of 0 becomes 1. 2 to the power of 0 is 1. Then you do the multiplication, 4 times 1 = 4

Simplify.
1/2(4x-10)

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Answer:

2x - 5

Step-by-step explanation:

1/2(4x - 10)

2x - 5

HELLPPPPPPP PLEASEEE​

Answers

Answer:

3

Step-by-step explanation:

Clayton is at most 2 meters above sea level. Using C for Clayton, which inequality correctly represents this statement?

Answers

Answer:

C ≤ 2

Step-by-step explanation:

Given that :

Clayton is at most 2 meters above sea level ;

Let Clayton = C

Clayton's distance can be represented by the inequality :

2 meters above sea level is positive, +2

At most 2 meters above sea level means, Clayton could be anywhere between + 2 metwrs but not more than 2 meters

Hence, Clayton's distance can be represented by the inequality :

C ≤ 2

What is the circumference of a circle that has a diameter of 5 inches?

Answers

Answer:

5π ≃ 15,7 in

Step-by-step explanation:

HELP PLEASE ASAP
which is the most accurate estimate of 25% of 39?
A. 1/3x40
B. 1/2x40
C.1/4x40
D.2/3x40

Answers

Answer:

c. 1/4 x 40

Step-by-step explanation:

25% = 1/4

so the most logical option would contain 1/4, which is c.

Solve. Dante's mom made 2 liters of cocoa. Dante and his 7 friends each drank a serving of cocoa. If each serving is 235 milliliters, how much cocoa is left?

Answers

Answer:

120 millimeters or 0.12 liters

Step-by-step explanation:

To solve this question :

we have to convert liters to millimetersmultiply the serving of coca by the number of people that consumed the cocasubtract the answer gotten from the step above from 2 litters

1 liter = 1000 millimeter

2 liters = 2 x 1000 = 2000mm

8 people drank cocoa = 8 x 235 = 1880mm

Amount of cocoa left over = 2000 - 1880 = 120mm or 0.12 liters

The Fast Car Repair Shop charges a $60 fee plus $30 an hour for labor. Jeff's Repair Shop charges $45 an hour. How many hours of labor, x, would make Fast Car Repair Shop's charges less the same as Jeff's Repair Shop's charges?​

Answers

It would take 5 hours

HELPPPPPPPPPP PLSSSSS!! i’ll give brainlist!

Answers

Answer:

1. No

2. No

3. No

4. Yes

5. Yes

Step-by-step explanation:

1.) no
2.) no
3.) no
4.) yes
5.) yes

Form a quadrilateral with exactly one pair of parallel sides.

Answers

Answer:

A trapezoid is a quadrilateral with exactly one pair of parallel sides.

Step-by-step explanation:

hope this helped

Can someone help me please I have been trying for hours but I can’t do it

Answers

Answer:

Step-by-step explanation:

a = 7.5 points

b = 22.5 points

c = 85 points

d = for every mystery solved 2.5 points are subtracted

find the slope of the line of best fit shown below.

Answers

The Answer is A, 1/2

I need help on this and the first one who answer correctly gets a BRANLIST​

Answers

Answer:

I think the answer is B not sure

a) What is the rate of each pump?

(b) Which pump is the slowest?

Pump A

Pump B

Pump C
(c) How much fluid does each one pump in 3 hours?

Answers

Answer:

pump A

Step-by-step explanation:

Find the volume of the cone.
Either enter an exact answer in terms of # or use 3.14 for and round your final answer to the nearest hundredth.

Answers

Answer:

v ≈ 78.54

Step-by-step explanation:

v = π [tex]r^{2}[/tex]  [tex]\frac{h}{3}[/tex]

so v ≈ 78.54

HELP DUE IN 10 MINS! Use right triangle trig to solve for the missing angles. Round all answers to the nearest degree (whole number).



x=??

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Answer:

relationship between base and perpendicular is given by tan angle

tan ?=perpendicular./base

tan?=5/16

?=tan-¹(5/16)=17.35=17

help plz giving brainlest

Answers

Answer:

The answer is F 10, 20, 30, 40, 50 For every 1 hour you earn 10 dollars and it keeps going


Which equation represents the line that passes through
points (-1, 3) and (4, -2)

Answers

Answer:

y= -1x+2

Step-by-step explanation:

i hope this helps :)

help a gal out please​

Answers

Answer: negative, linear association

Step-by-step explanation:

whoever does this question for me is the best person ever. i will mark brainlest. please help. (question shown above)

Answers

Answer: 1

Step-by-step explanation:

The value of y varies directly with x. When y = 3.5, x = 2.
What is the value of y when x is 16?

Answers

in order to do this problem, you have to divide 16 by 2 to see how many times x was multiplied. you would find that x was multiplied 8 times, so in order to find y, you would multiply 3.5 eight times.

y = 28 when x = 16

need helps pleaseeeeeeeeeeee

Answers

Answer:7-11

Step-by-step explanation:I am not sure but I think you just put 7 and 11 hope this helps but have a answer on the side just in case I am wrong

9x + 10y = -11
9x + 10 * 7 = -11
9x + 70 = -11
9x + 70 - 70 = -11 - 70
9x = -81
9x / 9 = -81 / 9
x = -9

Anthony bought 3 chicken wings for $3.00. What's the unit cost of one wing?

Answers

Answer; $1
Explanation 3 divided by 3

Answer:

im pretty sure it $1

Step-by-step explanation:

i might be wrong

The number 70 is decreased to 41. What is the percentage by which the number was decreased, to the nearest tenth of a percent?

Answers

Answer:

Decreased percent = 41.4 % (Approx.)

Step-by-step explanation:

Given:

Old number = 70

New number = 41

Find:

Decreased percent

Computation:

Decreased number = 70 - 41

Decreased number = 29

Decreased percent = [29 / 70]100

Decreased percent  = 41.42%

Decreased percent = 41.4 % (Approx.)

Please help! 16/20. Will give brainliest! Spam answers will not be tolerated!
Factor. [tex]33x^2-x-14[/tex]

Answers

Answer:

(11x+7)(3x−2)

PLZ HELP!!


graph the function and describe how it was transformed from x^2

Answers

Sorry not sure how it was transformed but this is the graph

Answer:

Ax+By=C is the standard form

y-3=(2/3)(x-2)

multiply both sides by 3

3y-9=2(x-2)

3y-9=2x-4

3y-2x=9-4

3y-2x=5

multiply both sides by -1

2x-3y=-5 is the standard form Hope if helps

Which mapping does not represent a function?

Answers

A
it leaves a number out, resorting it to not be a function.

An equation is written

ac-b=1

Based on the equation, which is a true statement?​

Answers

Answer:

Step-by-step explanation:

Help me with this question please

Answers

Step-by-step explanation:

The answer which you have chosen is correct.

A ladder is placed against a wall, such that it touches the top of the wall 6 meters above the ground. The ladder is inclined at an angle of 53 degrees. Find how far the ladder is from the foot of the wall.

Answers

[tex]Your[/tex] [tex]answer[/tex] [tex]would[/tex] [tex]be.[/tex]

[tex]3.46[/tex] [tex]meters[/tex]

[tex]-Yaoii[/tex]

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