Researchers wish to examine the effectiveness of a new weight-loss pill. A total of 200 obese adults are randomly assigned to one of four conditions: weight-loss pill alone, weight-loss pill with a low-fat diet, placebo pill alone, or placebo pill with a low-fat diet. The weight loss after six months of treatment is recorded in pounds for each subject. To analyze this data, you would use __________.
a. a z-test
b. a t-test
c. an ANOVA F test
d. a Chi-square test

Answers

Answer 1

Answer:b

Step-by-step explanation:

Answer 2

To analyze this data, you would use An ANOVA F test.

What is a normal distribution?

An example of a continuous probability distribution is the normal distribution, in which the majority of data points cluster in the middle of the range, while the remaining ones taper off symmetrically toward either extreme. The distribution's mean is another name for the center

The study involves comparing the weight loss of four groups of participants (weight-loss pill alone, weight-loss pill with a low-fat diet, placebo pill alone, or placebo pill with a low-fat diet) after six months of treatment. ANOVA (Analysis of Variance) is a statistical method used to analyze the differences among means of two or more groups.

In this case, ANOVA can be used to determine if there are significant differences in weight loss among the four treatment conditions.

A t-test or z-test would be appropriate if there were only two groups being compared.

A chi-square test is used to analyze categorical data, which is not applicable in this scenario where the data is continuous.

Therefore, an ANOVA F test would be used.

Learn more about normal distribution here:

https://brainly.com/question/29509087

#SPJ2


Related Questions

Plz help me well mark brainliest!!...

Answers

Answer:

B

Step-by-step explanation:

9+9+6+6=18+12=30

hope it helps :)

answer: B

explanation: to get the perimeter you need to add all the sides.
9+9+6+6=30

The Sine Function

The tide is the regular rising or falling of the ocean's surface. This is due in large part to the gravitational forces of the moon. The following table represents water level of the tide off the coast of Kings Point, N.Y. for a 24 hour period.
February 9th through February 10th of 2009.

Use your graphing calculator to produce a sine regression model for the data in the table. Round a, b, c, and d to the nearest 0.0001. Then use your model to predict the height of the tide 30 hours after the original observation.

a. The height of the tide 30 hours after the original observation is -3.27 feet.
b. The height of the tide 30 hours after the original observation is 16 feet.
c. The height of the tide 30 hours after the original observation is 8 feet.
d. The height of the tide 30 hours after the original observation is -0.63 feet.

Please select the best answer from the choices provided

Answers

Answer:

C. The height of the tide 30 hours after the original observation is 8 feet.

Step-by-step explanation:

I calculated it logically

Lauren is making string bracelets with black and silver beads added in for decoration.

Black beads come in packages of 24, and silver beads come in packages of 36.
Each bracelet will have the same number of each color bead.
Lauren has one package of each bead color, and she will use all of the beads.
What is the greatest number of bracelets Lauren can make?

Answers

The greatest number of bracelets Lauren can make using the black beads and the silver beads is 12.

What is the greatest number of bracelets that can be made?

In order to determine the greatest number of bracelets that can be made, the highest common factor of both numbers have to be determined.

Highest common factor is the highest factor that is common to two or more numbers

Factors of 24 = 1, 2, 3, 4, 6, 8, 12, 24Factors of 36 = 1, 2, 3, 4, 6, 12, 18, 36 Highest common factor = 12

To learn more about highest common factor, please check: https://brainly.com/question/26073850

#SPJ2

How would you characterize the relationship between the hours spent on homework and the test scores

Answers

Answer:

sorry can'thelp

Step-by-step explanation:

Answer and explanation:

I would characterize the relationship as a positive correlation. I would probably give it a 0.7, which means that the correlation is relatively strong. Also, this is an example of correlation, not causation, because there is not scientific proof that doing homework more will cause better grades. Hope this helps!

Maria had $22.45 to spend on groceries. After buying 3 bags of chips, she had $10.60 left. If each bag of chips costs the same amount, what is the price of one bag of chips

Answers

Answer:

$3.95

Step-by-step explanation:

Take the amount she has to spend and subtract the amount left ($10.60) and that will leave you with $11.85.  So this is  how much was spent on the 3 bags of chips. To find how much each bag cost, divide $11.85/3 bags = $3.95 per bag.

o.5 is < or > or = to 0.7

Answers

Answer:

.5 < .7

Step-by-step explanation:

unless its negatives, the bigger the number the more value it has

0.5 > 0.7 i hope this helpsssss

How many mL (milleters) are in 12.9 liters?

1. 129 mL
2. 1,290 mL
3. 12,900 mL
4. 129,000 mL


please help ASAP!

Answers

Given statement solution is :-12.9 liters are in milleters is  12,900 mL.

The metric system uses millilitres as the unit of volume, denoted by the letters ml or mL. One cubic centimetre, or one thousandth of a litre, is equivalent to one millilitre. That's a little sum in the imperial system.

A measure of volume in the metric system. One thousand milliliters equal one liter. Additionally known as cc, mL, and cubic centimetre.

To convert liters to milliliters, you need to multiply the number of liters by 1,000, since there are 1,000 milliliters in a liter.

So, multiplying 12.9 by 1,000 will give you the answer to how many millilitres are in 12.9 litres:

12.9 litres x litres per 1,000 = 12,900 mL

Therefore, option 3: 12,900 mL, is the milleters right response.

For such more questions on milleters

https://brainly.com/question/30400914

#SPJ8

In a school machine shop, 60% of all machine breakdowns occur on lathes and 15% occur on drill presses. Let E denote the event that the next machine breakdown is on a lathe, and let F denote the event that a drill press is the next machine to break down. With and P(E) = 60 and P(F) =.15, calculate:
A. P(EC).
B. P(EUE).
C. P(EC ∩ FC).

Answers

Answer:

A. P(EC) = 0.4  

B. P(E∪E) = 0.75

C. P(EC ∩ FC) = 0.25

Step-by-step explanation:

Let us calculate -:

we are given with - P(E) = 60 and P(F) =.15,

Thus , (a) [tex]P(E^C)=1-P(E)[/tex]

                   [tex]=1-0.6[/tex]

                   [tex]=0.4[/tex]

(b) P(E∪F) = P(E) + P(F)

   = 0.60 + 0.15

   = 0.75

(c) [tex]P(E^C[/tex]∩[tex]F^C)[/tex] [tex]=1-P(E[/tex]∪ [tex]F)[/tex]

   [tex]=1-0.75[/tex]

   = [tex]0.25[/tex]

Hence , the answers are -A. P(EC) = 0.4  , B. P(E∪E) = 0.75  , C. P(EC ∩ FC) = 0.25.

Hi 10 +10 here is me question help

Answers

Answer:

[tex] \huge\red{\boxed{\mathfrak{Hello}}}[/tex]

[tex]\huge \fbox \pink {A}\huge \fbox \green {n}\huge \fbox \blue {s}\huge \fbox \red {w}\huge \fbox \purple {e}\huge \fbox \orange {r}[/tex]

[tex]10 + 10 \\ = 20[/tex]

Answer:20

Step-by-step explanation:

10+10=20

Given ABC AB=6,AC=9, find BC

Answers

Answer:

BC is 12

Step-by-step explanation:

Which means that you just add by 3 which is the rule

HELP PLZZZZZ OMGGGGGGG

Answers

The money is a lot so it would be c

Which of the following is the correct point-slope equation for the line that
passes through the point (-3,-9) and is parallel to the line given by
y = 2.5x - 20?
O A. Y-3 = 2.5(x - 9)
O B. y + 3 = 2.5(x + 9)
O C. y + 9 = 2.5(x+3)
O D. Y- 9 = 2.5(x-3)

Answers

Answer:

these are negative numbers

Step-by-step explanation:

How can limit be used in real life

Answers

Answer:

Engineers use limits in real life.

Step-by-step explanation:

Limits are also used as real-life approximations to calculating derivataves. So to make calculations, engineers will approximate a function using small differences in the function and then try and calculate the derivative of the function by having smaller and smaller spacing in the function sample intervals.

Which of the following is not true? Select one: The data is symmetrical. The median is 1.25. The data is skewed right The spread of the data distribution is from 0 to 2.5

Answers

do you have a picture of the data table?

Two trucks started toward each other at the same time from towns 500 lm scart One truck traveled at a rate of 65 km per hour wrile the other traveled at 50 km per hour. After how many hours did they meet?
If represents the number of hours, which of the following equations could be used to solve the problem?

65x=60x
65x -60x=500
65x+60x=500

Answers

Answer:

65x + 60x = 500

add 65x and 60x

this will equal 125x

divide 500 by 125

this will give you x = 4

which gives you the answer that the trucks will meet in 4 hours

please mark as brainliest

hope this helps : )

Step-by-step explanation:

At the city Museum child admission is $6.40 in adult admission is $9.70 on Sunday 149 tickets were sold for a total sales of $1145 how many adult tickets were sold that day

Answers

Answer:

Adult=58

Step-by-step explanation:

c=child, a=adult

6.4c+9.7a=1145 equation 1

c+a=149 equation 2

a=149-c modified equation 2 to isolate a

6.4c+9.7(149-c)=1145 substitute value of a from equation 1 into equation 2

6.4c+1445.3-9.7c=1145

-3.3c=-300.3

c=91

solve for a

c+a=149

91+a=149

a=58

Check answer:

6.4c+9.7a=1145

6.4(91)+9.7(58)=1145

582.40+562.60=1145

1145=1145

Please help me! No links

How many math problems were answered correctly by Suzy and Joe?

Answers

Since suzy answered 9 and Joe answered 12, you add 9+12 to get 21. The answer is 21 math problems.

The graph of a line has a slope of 3 and passes through the point (-4,-5).
What is the equation of the line in point-slope form?

Answers

Answer:

3x - y + 7 = 0

Step-by-step explanation:

The given point is , ( -4 , -5) and the slope is 3. The point slope form is ,

=> y - y₁ = m( x - x₁)

=> y - (-5) = 3 { x - (-4) }

=> y +5 = 3( x + 4 )

=> y + 5 = 3x + 12

=> 3x - y + 12 - 5 = 0

=> 3x - y +7 = 0

Hence the equation of the line is 3x - y + 7 = 0 .

In circle F with mZEFG = 30 and EF =
30 and EF = 11 units, find the length of arc EG.
Round to the nearest hundredth.
F
G
E

Answers

Answer:

5.76 units

Step-by-step explanation:

Length of arc EG = central angle/360 × 2πr

Where,

central angle = 30°

radius (r) = 11 units

Plug in the values into the formula

Length of arc EG = 30/360 × 2 × π × 11

Length or arc EG ≈ 5.76 units (to nearest hundredth)

Help meeee please or I'm going to fail school
Christopher tosses a coin three times. Each toss could be heads or tails. Which outcome would be included in the compound event "at least two heads"? First toss He Second Third Sample space toss toss outcomes
H HHH HHT HTH HTT THH THT TTH H H T

A. THH

B. HTT

C. TTH

D. THT

Answers

Answer: The is THH, or A.

Step-by-step explanation: The question directly ask for “at least two heads”, which no other answer contains two heads. Therefore, the answer is A.

Find the inverse for each relation:
1. {(1,-2), (2, 3),(3, -3),(4, 2)}

Answers

Answer:

the inverse for each relation:

1. {(1,-2), (2, 3),(3, -3),(4, 2)} is

{(-2,1),(3,2),(-3,3),(2,4)}.

Find the value of the missing angle please help!

Answers

Answer:

4th Option, 45.1

Step-by-step explanation:

Cos(Ф) = [tex]\frac{12}{17}[/tex]

Ф = Cos⁻¹ ([tex]\frac{12}{17}[/tex])

Ф = 45.1

Hope this helps!

Find the distance between the origin and the point (10,45,57)

Answers

Answer:

Step-by-step explanation:

3D space  (x, y, z)  = (10, 45, 57)

I will use  x² + y² = (2D Hyp)²  and (2D Hyp)² + z² = (3D Hyp)²

which is just x² + y²  + z² = (3D Hyp)²

10² + 45²  + 57² = (3D Hyp)²

100 + 2025 + 3249    =  5374   =   (3D Hyp)²    the destance from the origin

                                                   =  73.31    the destance from the origin

The numbers x, y, z and w have an average equal to 25. The average of
x, y and z is equal to 27. Find w.
A. 23
B. 19
C. 25 D. 29​

Answers

Answer:

look at the picture i sent

I WILL MARK BRAINLIEST
DO NOT GUESS OR ATTACH FILE OR I WILL REPORT
Mara spins this spinner and rolls one six-sided die. What is the probability of spinning a 3 and rolling a 3 on the die?
(Photo above) Pls help​

Answers

Answer:

D. The probability is 7%.

ΔABC and ΔXYZ are similar triangles. The lengths of two sides of each triangle are shown. Find the lengths of the third side of each triangle.

Answers

Answer:

a=7.6

y=2.3

Step-by-step explanation:

2.5/5=3.8/a

1/2=3.8/a

a=7.6

2.5/5=y/4.6

1/2=y/4.6

2y=4.6

y=2.3

In the first region are located 6 Rattatta Pokemon hidden in the grass at any given time and 8 Pidgey Pokemon. What would be the probability of running a Rattatta Pokemon?​

Answers

6+8= 14
6/14 is the probability

What is the most specific name for the figure?
A(-a, 0)
B(-2a, a)
C(-a, 2a)
D(0, a)
A. Parallelogram
B. Rectangle
C. Square
D. Rhombus

Answers

Answer:

Its C. Square

Step-by-step explanation:

The most specific name for the figure is Square.

What  is Quadrilateral?

A quadrilateral is a four-sided polygon in geometry with four sides and four vertices. The Latin words quadri, which means "four," and latus, which means "side," are the sources of the word. Similar to other polygons like the pentagon, it is also known as a tetragon, derived from the Greek words "tetra," which means "four," and "gon," which means "corner" or "angle." It is also known as a quadrangle or a 4-angle because the word "gon" means "angle."

Given figure with coordinates

(-a, 0), (-2a, a), (-a, 2a), (0, a)

from coordinates length of side can be calculated excluding negative sign,

side = (y₂ - y₁)/(x₂ - x₁)

AB = (a - 0)/(-2a + a) = -1

BC = (2a - a)/(-a + 2a) = 1

CD = (a - 2a)/(0 + a) = -1

DA = (a - 0)/(0 + a) = 1

excluding negative sign for length all sides are equal

it is a Square: A regular polygon with four sides of equal length and angles of equal length of 90 degrees each is called a square.

Hence the figure is Square.

Learn more about Quadrilateral;

https://brainly.com/question/13805601

#SPJ2

what is the probability of rolling a number greater than 2 with a standard number cube

Answers

Answer:

4/6 or 2/3

Step-by-step explanation:

6 sides with 4 of the numbers being greater than 2; 4/6. The simplified version is 2/3.

The lowest part of the Caspian Sea has an elevation of 28 meters below sea level. Enter the integer that represents the elevation of the lowest part of the Caspian Sea, in meters

Answers

Answer:

-28 meters

Step-by-step explanation:

Sea level is represented as 0 meters typically, so for something that is 28 meters below sea level, you would represent that as -28 meters.

Other Questions
lWhich religion do you follow?Write some rituals you perform according to your religion. PLEASE HELPWILL GIVE BRAINLIEST Que relacin hay entre los campos magnticos y campos elctricos? Select the best equation needed to solve for x; then solve for x: A. 2x+1=33 ; x=16B. 2x+1=33 ; x=17C. 2x+1+33=90 ; x = 28D. 2x+1+33=90 ; x=56 What is the tone of Passage Ill?A. FormalB. SarcasticC. PessimisticD. InformalWhat quote from Passage Ill establishes the tone?A. "Andrew Jackson would never let on but what he was satisfied, and hadn't expected nothingelseB. "the bets being doubled and doubled on the other side all the time, till the money was all upC. "And a dog might tackle him and bully-rag him, and bite him, and throw him over his shoulder two or three times"D. "and then all of a sudden he would grab that other dog jest by the j'int of his hind leg and freeze to it-not chaw, you understand, but only jest grip and hang on till they throwed up the sponge." Similar figures have the same ________ but not necessarily the same size. What does 2/3 equal and cos2/3 equal? Can someone please help me with this. What is the probability that none of the 5 cars will have defective brakes? Should the dealership be concerned? When Mexicowas unable topay its debts,textthe leader of France, tookthe opportunity to expandhis empire and InvadeMexico The principles of art are considered in which stage of critique?O AnalysisO JudgementO DescriptionO Interpretation Jackson is saving money to attend space camp. Space camp costs $948. So far, Jackson has saved $593. He agrees to do these tasks and will save the money he earns from them. He will walk the neighbor's dog every day for a month to earn $42. He will mow the yard for his dad every week for the summer to earn $44. He will pull weeds in the garden for his mom twice a week for the summer to earn $50. After these tasks, how much more money will Jackson still need to save to go to space camp? Which Table Shows a Proportional Relationship? (no links :) In solfege, which note of the major scale is referred to as sol?the third notethe fifth notethe seventh notethe first and eighth note Mathematics due today just one question. Some people worry that the increasing number of cell phones will cause cancer because of the energy of the radio waves they emit. Cell phones are a new technology that only recently became widely used. And because cancer takes years to develop, the amount of risk is not yet known.Research this issue, and summarize whats known so far. In your summary, include information about the energy of radio waves. Be sure to only use credible sources. Based on what you learned from your research, do you think people should limit their cell phone use? Why or why not? Craig is x years old. His 15 year old sister, Sue is 6 years younger than Craig. Which equation can be used to determine Craig's age? What is Craig's age? The Australian government requires people importing goods to the country to pay an import dutya type of tariff that raises the price of the imported goods. The Australian government most likely has this policy toA raise money for Australian public schools.B encourage more businesses to create new products.C encourage trade with foreign countries.D make buying goods made in Australia more appealing. What is the LD50 of a substance? Luisas bank offers a 13% simple interest rate on investment accounts. How much money would Luisa haved in her account if she invests $2,000 for 4 years?i apriciate any help, thank you! ATTEMPT SCORE 7 / 13 01 Fill in the Blank Text Fill in the blanks to show the product. 1. (x2 + 6) (2 - 4) = x T 2 + 2 2 + 24 2. (2x + 5)(x - 3) = 2 x 2 + 1 C + 15 3. (3x + 2)(2.x + 5) = 6 + 19 2 + 10 4. (2x - 1)(x - 5) = 2 22 +11 2 + 5 02 Math Short Answer they said I got it wrong so please help.