For each of the following research scenarios, decide whether the design uses a related sample. If the design uses a related sample, identify whether it uses matched subjects or repeated measures. (Note: Researchers can match subjects by matching particular characteristics, or, in some cases, matched subjects are naturally paired, such as siblings or married couples.) Lorrin Koran has studied whether antidepressants are effective for treating kleptomania. Suppose that people with kleptomania typically score 72 on the Barratt Impulsiveness Scale. You want to see whether kleptomaniacs who are taking antidepressants score lower on the impulsiveness scale than the population average. The design described . You are interested in a potential treatment for compulsive hoarding. You treat a group of 50 compulsive hoarders and compare their scores on the Hoarding Severity Scale before and after the treatment. You want to see if the treatment will lead to lower hoarding scores.

The design described ___________.

Answer:

sia lagoa dak ja jswek surang jawaek see surang

Answer:

the range is four

14 for the second answer

Step-by-step explanation:

Answer:

(0.8165 ; 0.8819)

Lower boundary = 0.8165

Upper boundary = 0.8819

Step-by-step explanation:

Given :

Sample proportion. Phat = x/ n = 276/ 325 = 0.8492

Confidence interval :

Phat ± margin of error

Margin of Error = Zα/2* [√Phat(1 - Phat) / n]

Phat ± Zα/2* [√Phat(1 - Phat) / n]

The 90% Z critical value is = 1.645

0.8492 ± 1.645*[√0.8492(1 - 0.8492) / 325)

0.8492 ± 1.645*[√0.8492(0.1508) / 325]

0.8492 ± 1.645*√0.0003940288

0.8492 ± 0.0326535

Lower boundary = 0.8492 - 0.0326535 = 0.8165

Upper boundary = 0.8492 + 0.0326535 = 0.8819

Confidence interval = (0.8165 ; 0.8819)

Daniella: Were you thinking of perpendicular lines?

Ori: It seems like you've got the basic idea, but your definition could be more precise.

Kaori: Yes! Well done. Here, have a cookie. You've earned it.

Answer:

3200 of 768 is 416.67%

Step-by-step explanation:

There's your answer hope this helps.

Answer:

<

Step-by-step explanation:

Inequality symbols:

<     less than

>     greater than

=     equal to

≤     less than or equal to

≥     greater than or equal to

In this case, it is known that -4 is less than 5, or:

-4 < 5.

~

Answer:

>

Step-by-step explanation:

because 5 is bigger than -4

Answer:

çoook yardım etmek isterdim ama biz kesirlerde bu konuyu daha işlemedik çok özür dilerim

The unit of the rate of change is (b) dollars per month

From the question, we have the following parameters that can be used in our computation:

The table of values

Where we have

y = total amount in dollars

x = number of months

The rate of change is calculated as

Rate  = y/x

substitute the known values in the above equation, so, we have the following representation

Rate = total amount in dollars/number of months

So, we have

Unit = dollars per month

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Answer:

Jill had $136.50 before buying the book.

Step-by-step explanation:

Let x be the total amount that Jill had

Then 12% of x is 0.12x

Jill was left with $120.12 after buying the book

Subtracting the cost of book from the total amount will given us the remaining amount.

Which means

\(x - 0.12x = 120.12\\0.88x = 120.12\\x = \frac{120.12}{0.88} \\x = 136.50\)

Hence,

Jill had $136.50 before buying the book.

Rounding to 3 significant figures, average speed is 70.6 mph

Distance refers to the extent or length of space between two points. It is a scalar quantity that describes the separation between two points in a one-dimensional, two-dimensional, or three-dimensional space. Distance is usually measured in units such as meters, kilometers, miles, feet, or yards, depending on the system of measurement being used.

To calculate the lower bound for the average speed of the journey, we need to divide the distance travelled by the time taken, but we have to use the lower bound values of distance and time.

Lower bound distance = 235 - 2.5 (since the distance is given to the nearest 5 miles, we subtract half of 5 to get the lower bound value) = 232.5 miles

Lower bound time = 200 - 2.5 (since the time is given to the nearest 5 minutes, we subtract half of 5 to get the lower bound value) = 197.5 minutes

197.5 minutes ÷ 60 = 3.292 hours

Therefore, the lower bound for the average speed of the journey is:

Average speed = Lower bound distance ÷ Lower bound time = 232.5 miles ÷ 3.292 hours ≈ 70.648 mph

Rounding to 3 significant figures, we get the final answer:

Average speed = 70.6 mph

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Answer: 3600

Step-by-step explanation: N= 3,600

3,600/12= 300

Answer:

n=0, or n=3600

Step-by-step explanation:

If your question is n/12 = 300n, n=0

Otherwise n/12=300, n=3600

Multiply both sides by 12 to isolate variable

what is the question?

The possible values of x are 51% < x < 59%.

When you are given various values, the range of those values is how big the difference is between the largest value and the smallest value. In other words, the range is what you get when you subtract the smallest value in the group from the largest value in the group.

Its possible values are 1, 2, 3, 4, 5, and 6; each of these possible values has a probability of 1/6. 4. The word “random” in the term “random variable” does not necessarily imply that the outcome is completely random in the sense that all values are equally likely.

Let K represent Kofi

1st paper = 45/100

2nd paper = x / 100

Mean score = ( 45 + x ) % / 2

The possible range of x = 48% < (45+X)/2 < 52%

Cross multiplying

96% < 45 + x < 104%

Subtract 45 from both sides

Range = 51% < x < 59%

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Answer:

10,16,13

Step-by-step explanation:

got that right

The lengths of the sides of the triangle after the dilation is 13 , 10 and 16 respectively

Resizing an item uses a transition called Dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original. However, there is a variation in the shape's size. Dilation transformations ensure that the shape will stay the same and that corresponding angles will be congruent

Given data ,

Let the triangle be represented as ABC

Now , the dilated triangle is represented as A'B'C'

The dilation scale factor is d = 1/3

The measure of side AC = 39

The measure of side AB = 30

The measure of side BC = 48

Now , after the dilation of 1/3 , we get

The measure of side A'C' = 39 ( 1/3 ) = 13

The measure of side A'B' = 30 ( 1/3 ) = 10

The measure of side B'C' = 48 ( 1/3 ) = 16

Hence , the dilation triangle is having lengths 13 , 10 and 16

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Hello!

surface area

= 2(4 x 2) + 2(12 x 4) + 2(12 x 2)

= 160cm²

(a) The domain of g(x, y) is the disk D = {(x, y) : x² + y² ≤ 16}.

(b) The total differential of g is dg = -x/(√(16 - x² - y²))dx - y/(√(16 - x² - y²))dy.

The domain of g(x, y) is the set of all values of x and y that satisfy the condition inside the square root to be non-negative.

16 - x² - y² ≥ 0

- x² - y² ≥ -16

x² + y² ≤ 16

The total differential dg of g(x, y), is calculated as follows;

dg = (∂g/∂x)dx + (∂g/∂y)dy

Using the chain rule, we have;

∂g/∂x = (1/2)(16 - x² - y²)^(-1/2)(-2x)

∂g/∂x = -x/(√(16 - x² - y²))

∂g/∂y = (1/2)(16 - x² - y²)^(-1/2)(-2y)

∂g/∂y = -y/(√(16 - x² - y²))

dg = -x/(√(16 - x² - y²))dx - y/(√(16 - x² - y²))dy.

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Option • 12 is the answer .The number of treatments in the experiment is 12.

The understudy is directing a trial to comprehend the connection between microwave power and time on the quantity of unpopped bits in a pack of popcorn. There are three degrees of microwave power: low, medium, and high. Each sack of popcorn can be popped for either 3 minutes or 4 minutes, which provides us with a sum of double cross variables. To cover every one of the potential mixes of time and power, the understudy runs 12 distinct medicines (3 degrees of force x 2 degrees of time). Every treatment addresses one sack of popcorn that is popped for a particular time frame and with a particular power setting. The quantity of unpopped parts is recorded for every treatment, and the outcomes are utilized to make determinations about the impacts of microwave power and time on the quantity of unpopped pieces.

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Answer:

I think its C. but i might be wrong.

Step-by-step explanation:

Hey there! I'm happy to help!

PART A

There are 3 $1 bills, 1 $5 bill, and 1 $10 bill. This gives us 5 total bills.

First, we want to find the probability of winning $12. Well, to win, you have to draw the $10 bill. You only have room for two dollars beforehand to equal $12 dollars after pulling out the ten. So, this is the probability of drawing two one dollar bills and the the ten. Let's calculate this below.

\(\frac{3}{5} *\frac{1}{2} *\frac{1}{3} =\frac{1}{10}\)

Where did I get these numbers from? Well 3 of the 5 bills are $1, so the first probability is 3/5. Then, if we draw one of the $1 bills, there are only 2 of those left and 4 total bills, so the probability is then one half. Finally, there would be only 3 left and you need to pick the $10 bill, which is a probability of 1/3.

The probability of winning $12 is 1/10 or 10%.

PART B

Now, we want to find the probability of picking every single bill before the ten. This means that we pick the three one dollar bills and the five dollar bill before the ten.

To pick the first $1 bill, our probability is 3/5, and then for the second it is 1/2. For the third, there are three total cards and 1 $1 bill, so the probability is 1/3. Then we have a 1/2 chance of picking the $5 bill over the $10 bill, giving us this solution.

\(\frac{3}{5} * \frac{1}{2} * \frac {1}{3} * \frac{1}{2}= \frac{1}{20}\)

The probability of winning all bills in the urn is 1/20 or 5%.

PART C

For this event, we want to get any bill that isn't the $10 and then we want the $10 on the second one.

Since there are 4 bills that aren't the $10, our first probability is 4/5. Then, we only have 4 left, with 1 being the $10, so our second probability is 1/4.

\(\frac{4}{5}*\frac{1}{4}=\frac{1}{5}\)

The probability of the game stopping at the second draw is 1/5 or 20%.

Have a wonderful day! :D

The probability of winning $12 will be 0.15.

The game stops after drawing$10 bill. There can also be 2 draws of $2 and $10 to make $12.

Therefore, the probability of winning $12 will be calculated thus:

= Probability of getting $2 × probability of getting $10

= 3/5 × 1/4

= 0.15

The probability of winning all balls in the urn will be:

= 4/5 × 3/4 × 2/3 × 1/2

= 0.2

Lastly, the probability of the game stopping at the second draw will be:

= First draw × Second draw

= 4/5 × 1/4

= 0.2

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Answer:

Step-by-step explanation:

Answer: 11 degrees F

If it was -12 and by noon it had risen 23 degrees  just add the two numbers together and you get 11 degrees F

Answer:

Below

Step-by-step explanation:

Pick two convenient integer coordinate sets on the line

 like 0,0 and 10,4

find slope, m  = ( y1-y2) / (x1-x) = ( 4-0) / ( 10-0) =  4/10  = 2/5

b = y axis intercept = 0

Slope - intercept equation of a line is of the form : y = mx + b

  substitute in the m and b values found above to get

     y = 2/5 x + 0

or just   y = 2/5 x

The level of Justine be after translation of lift remains same as initial condition,

⇒ level = 6.

Given that,

Justin is at 6th floor

Therefore,

In initial condition the level of Justine = 6

Now lift went 3 levels upward direction

Add the 3 to the initial level of Justine,

Then the level of Justine after such translation of lift = 6 + 3 = 9

Now lift went 3 levels downward

Now subtracting 3 form the level of Justine after moving upward,

Then the level of Justine after such translation downward = 9 - 3

                                                                                                  = 6

Then the final level of Justine after such translation of lift remains same as 6.

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Answer:

b) 270 ≥ 40.18d + 3.75

Step-by-step explanation:

Per day is a variable, so it's 40.18d

Per mile is also a variable so 0.05m

40.18d + 0.05m ≤ 270

40.18d + 0.05(75) ≤ 270

40.18d + 3.75 ≤ 270

Answer: 270 ≥ 40.18d + 3.75

Answer:

Step-by-step explanation

Okay so lets solve step by step/

15% can be written as a  fraction: 15/100

The of in the equation means multiplying.

15/100= 3/20

3/20*9= 270/20

27/2 is answer

Answer:

DirectoryGrinebiter

423 is 45 percent of what number?

If you take 45 percent of a number and get 423, then what is that number? In other words, you know that 45 percent of a number is 423 and you want to know what that initial number is.

To solve this problem you multiply 423 by 100 and then divide the total by 45 as follows: (423 x 100) / 45

When we put that into our calculator, we get the following answer:

940

Answer:

3

Step-by-step explanation:

(x + 1) : (3x + 1) = 8 : 20

20(x + 1) = 8(3x + 1)

20x + 20 = 24x + 8

12 = 4x

x = 3

The statement translated to an algebra equation will give the value of the unknown number w = 11/5

Algebra is the branch of mathematics that helps to represent problems or values in the form of mathematical expressions using letters to represent unknown values.

Let us represent the unknown number with the letter w so that the statement can be written as the equation:

5w - 8 = 3

add 8 to both sides

5w - 8 + 8 = 3 + 8

5w = 11

divide through by 5

5w/5 = 11/5

w = 11/5

Therefore, the statement translated to an algebra equation will give the value of the unknown number w = 11/5

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Answer:

976

Step-by-step explanation:

would you stop it already

Answer: 976m^2

Step-by-step explanation:

An easy way to find the surface area of a prism is to find the area of each side and add them all together.

Area of rectangle:

14mx10m=140m^2

Area of rectangle:

25mx10=250m^2

Since there are 2 of the long rectangles, you multiply by 2:

250m^2x2=500m^2

Area of triangle:

(24mx14m)/2=168m^2

Since there are 2 triangles, you multiply by 2:

168m^2x2=336m^2

Surface Area:

140+500+336=976m^2

Answer:

x-7

Step-by-step explanation:

Whatever her current age is, she was 7 years younger 7 years ago. Because her current age is undefined, it must remain an equation.