A group of researchers was interested in the effect of music on the behavior of dogs. Specifcally, they wanted to
measure the effect of classical music on sleepiness as an indication of dogs' mental relaxation. They conducted
the following study on a group of 400 Jack Russell Terriers.
Every day for 4 months, the researchers would play Beethoven's Moonlight Sonata for 1 hour occurring
randomly between 9 a.m. and 12 p.m. During the entire 3 hours observers would record the times in which
each dog was sleeping. By the end of the 4 months, the researchers calculated and compared the percentage of
time each dog spent sleeping during each of two conditions: while the music was playing and while it wasn't
Is the study appropriate for the statistical questions it's supposed to answer?

Answers

Answer 1

Answer:

Step-by-step explanation:

The first part of the question would be: B) Experiment

The second part would be: C) No, because the sample the study used isn't representative of all dogs.

Answer 2

The independent variable is a variable that represents a quantity being manipulated in an experiment, the control group will be the group that did not hear the music, and the experimental group the group that heard the song.

What is Independent variable?

An independent variable is a variable that represents a quantity being manipulated in an experiment.

xxx is often the variable used to represent the independent variable in an equation.

Dependent variables

A dependent variable represents a quantity whose value depends on how the independent variable is manipulated.

yyy is often the variable used to represent the dependent variable in an equation.

Confounding variable

It is a variable that influences both the dependent variable and the independent variable, causing a spurious association. The confounding variable is a causal concept and as such cannot be described in terms of correlations or associations.

With this information, we can conclude that, The control group are people who have not heard the music, the experimental group are those who heard the music, and the hypothesis is that music can change people's heart rate.

Learn more about Independent variables in brainly.com/question/900187

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Related Questions

Part A: A bag contains 10 Snickers bars and 1
Twix bar, and the outcome is drawing a Twix bar.
Which phrase BEST describes the probability?
of
A. Certain
B. Likely
C. Impossible
O
D. Neither likely nor unlikely
E. Unlikely

Answers

I would say d. Unlikely
E. unlikely there is only 1/11 chances

5×70=5×(_×10)
5×70=(5×_)x10
5×70=_×10=_​

Answers

Answer:

7

7

35 * 10 = 350

Step-by-step explanation:

We have 5 * 70 split up into multiple ways, and we need to provide an answer at the end of it.

5 * 70 = 5 * (__ * 10)

We have to equal the value of 5 * 70 by inputting the missing number.

What times 10 equals 70?

7.

5 * 70 = (5 * __) * 10

This goes for the same as the one before, what times 5 equals 5 * 70 to the same amount?

7.

5 * 70 = __ * 10 = __

Now for the final part, we take the information from before and implement to here, what is 5 * 7?

35.

Now do 35 * 10 :

35 * 10

350

can anyone give me the answer?

Answers

Answer:

169

Step-by-step explanation:

The square area is 64 and the paralellogram is 105

Add those two: 64+105=169

NEW question 3 × 65 in help my son needs help

Answers

Answer:

the right answer would be 195

Answer:

195 sir

Step-by-step explanation:

did  the math dont copy mine

What is the product of 148x27

Answers

Answer:

3996 :)

Step-by-step explanation:

Answer:

3,996

Step-by-step explanation:

Hope this right.but if it's not,im so sorry

Which measurement is the best estimate of the area in square inches of the stove top that does not include the area of the burners?
A 200.96 in.2
B 525.76 in.2
C 375.04 in.2
D 576 in.2

Answers

Answer:

A

AAAAAAAAAAAAAAZSAAAAAAA

AAAAAAAAAAAAAAAAAAAA

Holly use 7 sheets tissue paper to make one flower. she bought a package with 500 sheets of tissue paper about how many tissue flowers will she be able to make.

Can you break it down so I can show my daughter

Answers

Answer:

70

Step-by-step explanation:

What U will first want to do is divide 500 by 7 and U will get 71.42.

Then Im guessing sense it says about it will round to about 70 Paper Flowers.

Hope This Helps!!!

70

What you will first want to do is divide 500 by 7  you will get 71.42.

rounded about 70 tissue things-

what is 32 divided by 526

Answers

Answer:

0.0608365019

..............

Answer:

0.0608

or 0.061

I hope u got your answer

what is 1/9+3/5= what is the fraction

Answers

31/45


Hope this helps!!!!!

Answer:

32/45

Step-by-step explanation:

Find sin (E) given the triangle.
Someone pls help me wit this I’m so confused

Answers

Answer: 75.75°

Step-by-step explanation:

Sine is the opposite of the angle divided by the hypotenuse. The opposite side of the angle is 12.6 and the hypotenuse is 13.

sin(Ф) = 12.6/13

Take the inverse sine of both sides, this requires a calculator.

Ф = 75.75°

Help me out hereeeeeeeeeeeeeeeeeeee

Answers

9514 1404 393

Answer:

  (d)  (8, 40)

Step-by-step explanation:

A pentagon has 5 sides. 8 of them will have 8×5 = 40 sides. The ordered pair representing (pentagons, sides) will be ...

  (8, 40) . . . . . matches the last choice

What property do rectangles and parallelograms always share?

4 right angles
4 sides of equal length
2 pairs of parallel sides
2 acute angles

Answers

two pairs of parrell sides I THINK! i’m not sure

Answer:

the answer is

2 pairs of parallel sides

I hope this helps!

5 3/10 - 1.5 please help me

Answers

Your answer is 3.8 I hope it helped :)

Answer:

es igual a 111.111.111.011

You are given two complementary angles. One has a measure of 4x and the other has a measure of 7x. What is x?

Answers

Answer:

Step-by-step explanation:

Because there are two angles and they both are Complementary(90 degrees)

We can do 4x + 7x = 90

11x = 90

x= 8.18 repeating

For the geometric sequence, find the sum of the specified number of terms.
The first 8 terms of 4, -12, 36, ...
S8=

Answers

Given:

The geometric sequence is

[tex]4, -12, 36,...[/tex]

To find:

The sum of first 8 terms of the given geometric sequence.

Solution:

We have,

[tex]4, -12, 36,...[/tex]

Here, the first term is 4 and the common ratio is

[tex]r=\dfrac{-12}{4}[/tex]

[tex]r=-3[/tex]

The sum of first n terms of a geometric sequence is

[tex]S_n=\dfrac{a(r^n-1)}{r-1}[/tex]

Where, a is the first term and r is the common ratio.

Putting n=8, a=4 and r=-3, we get

[tex]S_8=\dfrac{4((-3)^8-1)}{-3-1}[/tex]

[tex]S_8=\dfrac{4(6561-1)}{-4}[/tex]

[tex]S_8=-6560[/tex]

Therefore, the sum of first 8 terms is -6560.

Sarah read 215 pages of her book during the first week of vacation. During the second week she read62 more pages then the first week

Answers

Answer:

She read 277 pages during the second week.

Step-by-step explanation:

215 + 62.

Answer: she read 277 books

Step-by-step explanation:

Please help I will give Brainliest

Answers

answer: it’s a black picture
The picture is black I can’t see anything

Aubree is going to invest in an account paying an interest rate of 1.5% compounded quarterly. How much would Aubree need to invest, to the nearest dollar, for the value of the account to reach $5,600 in 16 years?

Answers

Answer:

p=4407

Step-by-step explanation:

Answer:

22.2

Step-by-step explanation:

for nearst tenth

I am going to pay $44 for a pack of awesome color pencils. The tax is 6%. How much is the taxes going to be?

Answers

Answer:

2.64 sales tax

Step-by-step explanation:

hope i helped you

Daidrion runs 10 laps around a track in 8 minutes How many minutes per lap is that?

Answers

Answer:

1 lap in 4/5 minute.

Step-by-step explanation:

10/8=1/x

cross product

simplify 10/8 into 5/4

5/4=1/x

cross product

4*1=5*x

4=5x

x=4/5

What is the slope-intercept equation of this line? (0.6) (4.-2)​

Answers

Answer: y=-2x+6

Step-by-step explanation:

The equation for slope-intercept form is : y=mx+b

m=slopeb=y-intercept

----------------------------------------------------------------

First Step: find the slope

- (y2-y1)/(x2-x1)

GIven

x1=0

y1=6

x2=4

y2=-2

Solve

 (y2-y1)/(x2-x1)

=(-2-6)/(4-0)

=-8/4

=-2

Second Step: find the y-intercept

Given

y=-2x+b

Substitute one of the points into the equation

y=-2x+b

(-2)=-2(4)+b

-2=-8+b

b=6

Hope this helps!! :)

Please let me know if you have any questions

Write a condolence letter to your bosom friend who recently lost his mother.​

Answers

Answer:

Hey man, I'm sorry for you loss, if there is anything that I can do like bring you ice cream or pizza or something let me know. I am here for you, and I hope you feel better soon.

Write an expression that is equivalent to the following:
x + x + x + x - 20

Answers

Answer:

4x-20

Step-by-step explanation:

Please help me with all these questions :(

Answers

7. 11
8. 21.5
9. 9
10. 35-12 =x and x = 13
11. 8 and 9

Answer:

7) 11

8) 21.5

9) 9

10) 35+12=47

11) 3+5+9=17

Hope this helps!

Step-by-step explanation:

Write 0.0004891 in scientific notation.

Answers

Answer:

4.891×10^-4

Step-by-step explanation:

..................

4.891x10^-4 because it is


The diameter of a bowl is 14 cm. What is the circumference? Give the exact
answer in terms of pi.
2
7п cm
147 cm
287 cm
43.967 cm

Answers

The answer is 43.967cm because circumference is equal to pi times the diameter, or two times pi times the radius.

Write a linear expression in simplest form to represent
the perimeter of the triangle at the right. Then find the
perimeter if the value of x is 10 millimeters.

Answers

Answer:95

Step-by-step explanation:

This is classwork and i don't understand it at all PLEASE HELP

Answers

Answer:

The independent variable is the number of cars

the band washes and the dependent is the number of money they earn

Step-by-step explanation:

**URGENT**

Desperately need help!!

Can someone help please

Answers

Answer:

a)

2 4 6

6 12 18

10 20 30

b) 2/9

c) 4/9

What is 3415 times 7524, its due at the end of the day

Answers

Answer:

25,694,460

Step-by-step explanation:

Answer:

3415 x 7524= 2,569,446,0

Step-by-step explanation:

hope this helps!!!! :))

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