Sue wants to know whether wearing sunglasses improves driving performance. If she uses an independent groups design, she would manipulate the variable by randomly requiring half the drivers to drive with sunglasses and the other half to drive without sunglasses. having all drivers first drive without sunglasses and then with sunglasses. having half the drivers first drive without sunglasses and then with sunglasses and having the other half first drive with sunglasses and then without sunglasses. requiring all drivers to first drive with sunglasses and then without sunglasses.

Answers

Answer 1

Answer:

randomly requiring half the drivers to drive with sunglasses and the other half to drive without sunglasses.

Step-by-step explanation:

When employing an independent group design in a research or experimental study, the different groups in the study are assigned entirely different subjects such that, subjects in the treatment group are different from those in the control group. Therfore, adopting an independent group design in the scenario described above means diving the subjects into two at random with one half driving with sunglasses and the other half having to drive without it.


Related Questions

Help ASAP before 2:10

Answers

Answer:3 choice

Step-by-step explanation:

When you have this || you put the opposite mark

Answer:

D

Step-by-step explanation:

-6

-2

|-4|

|-5|

6

The || means "absolute value". Thats the distance from 0 on a number line.

Answer quickly please

Answers

Answer:

d is the answer

Step-by-step explanation:

ILJ and JKI

3⋅2^x/5=150 Which of the following is the solution of the equation?

Answers

Answer:

x=7.965784

Step-by-step explanation:

x = 7.97 (rounded to the nearest hundredth)

PLEASE HELP
*NO LINKS*

Answers

Answer:

its the 2nd one the answer is 1 because 2 times 1 equals one plus 3=1

Step-by-step explanation:

Chiquita had $463.28 in her checking account. She made deposits of $28.35 and$78.88. She paid her electric bill of $77.50.How much money was in Chiquita’s account after the deposits and after she paid her bill?

Answers

Answer:

$493.01

Step-by-step explanation:

463.28 + 28.35 + 78.88 - 77.50

Answer:

493.01

Step-by-step explanation:

463.28 + (28.35+78.88) = 570.51

Deposits means to add money.

570.51 - 77.50 = 493.01

a lego brick is 5/6 of a cm long, how long will the total length of 336 bricks be?

Answers

Answer:

278.88 cm

Step-by-step explanation:

Will mark brainliest!
Find the area of the triangle.

Answers

Answer:

the answer is 43.5. i am a 100% sure.

Step-by-step explanation:

please help! will give brainliest! review the graph of function f(x) for which values of c does lim f(x) not exist?
(graph and answer choices pictured)

Answers

Answer:

-2

Step-by-step explanation:

PLSSSSSS HELP GIVING BRAINLIEST
The probability of rolling a 6 with a six-sided number cube is . Choose the
likelihood that best describes the probability of this event.
A. Impossible
O B. Likely
C. Unlikely
O D. Neither likely nor unlikely

Answers

Step-by-step explanation:

That probability is 1/6 (one in six).  Certainly this outcome could happen, but the probability that it won't happen is 1 - 1/6, or 5/6.  Answer C is correct.

Plz help i am giving 30 points and dont put random anwser for points

Answers

Answer:

6 students

Step-by-step explanation:

first you wanna convert the 2/3 into 4/6 cause that makes it easier then add the 1/6 to it  making it 5/6 and finally 5/6 of 36 is 30 and 36-30=6

Answer:

6 students

Step-by-step explanation:

Blue shirts: 1/6*36 = 36/6= 6

white shirts: 2/3*36= 72/3= 24

Blue + white= 24+6= 30 Students

36-30= 6 students didn't wear blue or white

What is the gradient of the graph shown?
Give your answer in its simplest form.

Answers

Answer:

1/3

Step-by-step explanation:

i used the points (0,-2) and (3,-1) to find the slope:

(-2--1) / (0-3) = -1/-3 or 1/3

(15 points!!) Which transformation forms a mirror image of a figure on a coordinate plane?

Answers

Answer:

BLUEE

Step-by-step explanation:

IM HOPING THIS IS CORRECT

CAN SOMEONE PLZ HELP ME?? PLZ DO YOU KNOW ABOUT Coordinate Planes??!!

Answers

Answer:

(1.5,1) is the coordinate for point D

Answer:

point D = (1.5,2)

Step-by-step explanation:

The first number in the parentheses is the X coordinate, in this case it's 1.5

The first second in the parentheses is the Y coordinate, in this case it's 2

PLEASE HELP i will give brainliest

Answers

9 - I am big brain hahahah

Which is the best approximation of PX

Answers

Answer:

We now want to find the best approximation to a given function. This fundamental problem in Approximation Theory can be stated in very general terms. Let V be a Normed Linear Space and W a finite-dimensional subspace of V , then for a given v ∈ V , find w∗∈ W such that kv −w∗k ≤ kv −wk, for all w ∈ W.

Step-by-step explanation:

What is the value of x in the equation −8 + x = −2? (1 point) Group of answer choices −10 −6 6 10

Answers

Answer:

6

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

If you add 8 on each side to get x by itself you'll get

x=6

lol please help me i really don’t get this

Answers

Answer:

If y is inversely proportional to x then y is 3

PLEASE HELP GIVE BRANLIEST!!
For two events X and Y, P(X) =2/3 , P(Y) =2/5 , and P(X|Y) =1/5 . Find the probabilities.
1. 2/25 P(Y∩X) = ____
2.4/15 P(Y)· P(X) =____

Answers

Answer:

1. 2/25

2. 4/15

Step-by-step explanation:

1. P(Y∩X)

Since  P(X) =2/3 , P(Y) =2/5 , and P(X|Y) =1/5, this is a conditional probability.

So  P(Y∩X) = P(Y)P(X|Y) = 2/5 × 1/5 = 2/25

2. P(Y)· P(X)

P(Y)· P(X) = 2/3 × 2/5 = 4/15

What does r equal A B C or D

Answers

Answer:

b i think

Step-by-step explanation:

An airplane's altitude in feet during its descent can be found using the equation y=-150x + 30,500. After new government regulations become law, the descent isnow modeled by the equation y=-150x + 30,000. Which statement describes this change?


The airplane starts its descent from an altitude 500 feet lower.

The airplane descends 500 feet per horizontal mile slower.

The airplane descends 500 feet per horizontal mile faster.

The airplane starts its descent from an altitude of 500 feet.

Answers

Answer:

The airplane would starts its descent from an altitude 500 feet lower.

Step-by-step explanation:

The x-axis is horizontal and the y-axis is vertical (altitude). It would be 500 feet lower because they took 500 away from the 30,000.

Help! This is due today and I'm stuck on the last problem.
Brainiest for best answer.
NO LINKS! If you put a link, I will report you.
Find the area of the shaded region rounded to the nearest tenth.

Answers

Answer:

Step-by-step explanation:

Square

519450.2

Holes

Semi-circle: 1/2*pi*r^2

diameter = 700/2 = 350 =radius

1/2*pi*350 = 175*pi

Triangle

1/2 b*h

1/2 200*400

100*400

40000

Take out the semi circle and triangle

560000-40000-175*pi

520000-175*pi = 519450.2

Evaluate the six trigonometric functions of the angle 0



is right

Answers

Answer:

1. Sine θ = 1/3

2. Cos θ = 2√2 / 3

3. Tan θ = √2 / 4

4. Cosec θ = 3

5. Sec θ = 3√2 / 4

6. Cot θ = 2√2

Step-by-step explanation:

We'll begin by determining the adjacent. This can be obtained as follow:

Hypothenus (Hypo) = 9

Opposite (Opp) = 3

Adjacent (Adj) =?

Hypo² = Adj² + Opp²

9² = Adj² + 3²

81 = Adj² + 9

81 – 9 = Adj²

72 = Adj²

Take the square root of both side

Adj = √72

Adj = 6√2

Finally, we shall determine six trigonometric functions of the angle θ. This Can be obtained as follow:

1. Determination of Sine θ

Hypothenus = 9

Opposite = 3

Sine θ =?

Sine θ = Opposite / Hypothenus

Sine θ = 3/9

Sine θ = 1/3

2. Determination of Cos θ

Adjacent = 6√2

Hypothenus = 9

Cos θ =?

Cos θ = Adjacent / Hypothenus

Cos θ = 6√2 / 9

Cos θ = 2√2 / 3

3. Determination of Tan θ

Opposite = 3

Adjacent = 6√2

Tan θ =?

Tan θ = Opposite / Adjacent

Tan θ = 3 / 6√2

Tan θ = 1 / 2√2

Rationalise

(1 / 2√2) × (2√2 /2√2)

= 2√2 / 4×2

Tan θ = √2 / 4

4. Determination of Cosec θ

Sine θ = 1/3

Cosec θ =?

Cosec θ = 1 / Sine θ

Cosec θ = 1 ÷ 1/3

Cosec θ = 1 × 3/1

Cosec θ = 3

5. Determination of sec θ

Cos θ = 2√2 / 3

Sec θ =?

Sec θ = 1 / Cos θ

Sec θ = 1 ÷ 2√2 / 3

Sec θ = 1 × 3 / 2√2

Sec θ = 3 / 2√2

Rationalise

= (3 / 2√2) × (2√2 / 2√2)

= 3 × 2√2 / 4×2

Sec θ = 3√2 / 4

6. Determination of Cot θ

Tan θ = √2 / 4

Cot θ =?

Cot θ = 1 / Tan θ

Cot θ = 1 ÷ √2 / 4

Cot θ = 1 × 4 / √2

Cot θ = 4 / √2

Rationalise

= (4 / √2) × (√2 / √2)

= 4√2 / 2

Cot θ = 2√2


Can someone help me find the diameter of the copper ball ty

Answers

Answer:

The answer is 346.185 if its diameter is 22.

There is a stack of 10 cards, each given a different number from 1 to 10. Suppose we select a card randomly from the stack, replace it, and then randomly
select another card. What is the probability that the first card is an even number and the second card is less than 3?
Write your answer as a fraction in simplest form.

Answers

Answer:

1/10.

Step-by-step explanation:

The probability of getting an even card out of 10 cards numbered 1 - 10 is 1/2. The even numbers available are 2, 4, 6, 8, and 10 while the odd ones available are 1, 3, 5, 7, and 9. So half the outcomes could come out even.

The probability the second card is less than two is 1/5 (2/10 simplified). Since there are 10 cards with numbers 1-10, only two cards will have numbers less than 3, 1 and 2.

To find the total probability, multiply the two. (1/2) * (1/5) = 1/10. There is a 1 out of 10 chance that the first card is even and the second card is less than 3.

HELP I HAVE FSA GIVE ME SOME TIPSSS

Answers

Answer:

Plan ahead for medical expenses.

Spend your money.

Save your receipts.

Use your FSA to pay expenses your health plan doesn't cover.

Use your FSA to reach health plan financial milestones.

Know what your FSA covers.

Know your FSA balance.

Step-by-step explanation:

Answer:

Okay so I just took the FSA and my biggest tip is  to just relax and don't overthink. Another tip that is kinda weird is to  chew gum/mint. They normally hand it out to you but stopped for coronavirus.  It helps you focus and it helps calm you. Make sure you double check your answers and if you don't know a question go back over it and re read it.  Also pay attention to other questions because sometimes a question from the same passage helps you with a previous one.  You're going to do well and good luck!

Step-by-step explanation:

3-(1/3) to the 4th power

Answers

Answer:

if im reading it right its 8.3521

Step-by-step explanation:

pls help thank you so much !!​

Answers

Answer:

a) (0,5)

Step-by-step explanation:

Leah walks to soccer practice on Saturday. She leaves her home and walks 600 meters north. Leah then turns east and continues on to the soccer field. The soccer field is 1000 meters from her home. How far east did Leah walk?

Answers

Answer:

800m

Step-by-step explanation:

this would be solved using Pythagoras theorem

we are to find the base

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

600² + b² = 100²

b² = 10000 - 3600

b² = 6400

take the square root of both sides

b = 800m

Which expression is equivalent to 10x2y + 25x2?

5x2(2y + 5)
5x2y(5 + 20y)
10xy(x + 15y)
10x2(y + 25)

Answers

the first one 5x2(2y+5)

Diego scored 9 points less than Andre in the basketball game. Noah scored twice as many points as Diego. If Noah scored 10 points, how many points did Andre score? Write and solve the equation.

Answers

Answer:

Andre scored 14 points

Step-by-step explanation:

D = A - 9

N = 2D = 10

2D = 10

D = 5

5 = A - 9

14 = A

Answer:

Diego scored 14 points

x = 14

Other Questions
pls help i tried so many answers and none of them are right PLEASE HELP IM SO CONFUSED!!! Find the mean of the data below. answer to the nearest hundredth: 23, 42, 38, 67, 15, 51, 22, 9, 42 Find the potential solution to the equationlog (2-x) = log (-5x - 18).x= Which of the following is not a benefit of genetic engineering?A: Creation of harmful mutations and variations B: Diagnosis of genetic diseases C: Production of plants and crops that are resistant to disease D: Replacement of non-functioning genes You discover a technical anomaly in the US stock market. You find that stocks that go up X% or more 2 days in a row have an expected alpha of X/100% the following day (for example if a stock goes up 6% and 9%, then the next day its expected alpha is 0.06%). Suppose stock A has a BID-ASK spread of 0.2%, and has gone up 10% and 15% percent in the last 2 days. What is your expected profit (in dollars) if you choose to implement your strategy and take a $1000 position in the stock for one day? what other benefits do the geographic features of the region shown in the image provide to the Greeks? any clue how to do this question? What was one of the topics that Robert Burns explored intimately? The authors of a paper studied a random sample of 350 Twitter users. For each Twitter user in the sample, the "tweets" sent during a particular time period were analyzed and the Twitter user was classified into one of the following categories based on the type of messages they usually sent.Category DescriptionIS Information sharingOC Opinions and complaintsRT Random thoughtsME Me now (what I am doing now)O OtherThe accompanying table gives the observed counts for the five categories (approximate values read from a graph in the paper).Twitter Type IS OC RT ME OObserved count 50 61 64 102 73Required:Carry out a hypothesis test to determine if there is convincing evidence that the proportions of Twitter users falling into each of the five categories are not all the same. Use a significance level of 0.05. 13.) In 1990, a radio costs $25. Now,the radio costs $5. What is thepercent of change? What is the correct definition of drug abuse?A. the process where one learns to live without drugsB. substances that are against the law for people of any age to manufacture, possess, buy, or sellC. using a drug for a medical purposeD. using a drug in an unhealthful, illegal way will give brainliest if correct Which of these is the best definition of genetic technology?a. The study of chemical processes in living thingsb. The use and application of living things and sciencec. The application of engineering principles to solve medical problemsd. The study of forces IM GIVING BRAINLIEST PLEASE HELP!!! The perimeter of a rectangular garden is 68 feet. The lengthof the garden is 2 feet more than double the width. What is thewidth of the garden? Which of the following is a powerful antioxidant?a. free radicalsb. bleachc. peroxided. vitamin C Question 3 of 10Which best explains why the sun maintains its size and shape?A. Pressure caused by high temperatures are balanced by gravity.B. The sun burns from its core to its surface.C. Forces exerted by orbiting planets cause the sun to rotate.SUBMIT if 16c 1 gal then 1 1/4 gal __= c Which statement is true about protein synthesis? What did the declining demand for cotton lead to?A.It made finding work in the textile industry difficultB. It forced mill workers to become farmersC.It fueled other types of industriesD.It created more jobs for farmers in urban areas