Lee is a teacher at a local high school who wanted to assess whether or not dogs physically resemble their owners enough for people to be able to correctly match a dog to their owner better than if just guessing. Lee, who is also a dog owner, showed pictures of two dogs to her class of 16 students. One photo was of the teacher's dog (Yoda) and the other photo was of a dog the teacher had never met. The students were asked to guess which dog was actually the teacher's. If dogs do not physically resemble their owners, the students would get a correct match with probability 0.50. It turned out that 14 of the 16 students correctly picked out the teacher's dog. Does it appear that the population proportion of people who can correctly match a dog to their owner (out of two options) is better than just guessing? The hypotheses to be tested are H0: p = 0.50 versus Ha: p > 0.50, where the parameter p represents the population proportion of all people who can correctly match a dog to their owner (out of two options).

Answers

Answer 1

Answer:

Step-by-step explanation:

Given that:

The null hypothesis:

[tex]H_0: p = 0.50[/tex]

The alternative hypothesis:

[tex]H_a : p> 0.50[/tex]

Suppose the number of samples n from the population is 16

The observed value x of the test statistics for testing the hypothesis for this study is x = 14

However, if the null hypothesis is true, then the distribution of the test statistics follows a binomial distribution which is expressed as:

bin(n=16, p = 0.5) distribution

The p-value for this test statistics can be computed as:

p-value = P(X ≥ 14)

p-value = 1 - P (X ≤ 13)

p-value = [tex]1- \sum _{x=0^{x-1}} (n^C \ _x)p^x(q)^{(n-x)}[/tex]

p-value = [tex]1- \sum _{x=0^{x-1}} \dfrac{n!}{r!(n-r)! } p^x(q)^{(n-x)}[/tex]

p-value = 0.00209


Related Questions

Another student answers 21 questions 6 are correct how many points does she score

Answers

true
yes true because it's true

HELP PLEASE!!!!!! POINTS WILL BE GIVEN!!
1. It is impossible to buy a negative number of TV ads. Write an
inequality for this constraint.
2. It is impossible to buy a negative number of magazine ads. Write an
inequality for this constraint.

Information about project:
TV ads cost $600 per airing.
 Magazine ads cost $1200 per issue.
 You total advertising budget is $9,000.

Answers

Answer:

You havent gaven enough information for me to solve the question, do i just freely pick how much magazine ads and tv ads i want until i get to 9k, im very confused

Step-by-step explanation:

The length of each side of a square wooden box

Answers

Answer:

[tex](8x^2)^3\\= 512x^6[/tex]

You have to multiply the whole equation by cubed, since the parenthesis applies for the entire equation.

which fraction is equal to 0.5 7

Answers

14.25/25 I hope this helps

The value of fraction 0.5 7  is equal to 1/2.

We are given that;

Number = 0.57

Now,

There are different ways to express a fraction as a decimal, but one common method is to divide the numerator by the denominator.

For example, 1/2 as a decimal is 1 ÷ 2 = 0.512.

Another method is to use a fraction to decimal conversion chart or calculator345. According to these sources, 0.5 as a fraction is equal to 5/10 or 1/2.

These fractions are equivalent because they have the same value when simplified or reduced.

To simplify a fraction, we can divide both the numerator and the denominator by their greatest common factor (GCF).

Therefore, by algebra the answer will be 1/2.

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ6

Please please please help I cannot figure this problem out
Car A is traveling east at a steady speed of 60 miles per hour after 2 hours, it is 130 miles east of Johnstown. car B is traveling east on the same road. its distance east of Johnstown is represented by the graph.

Answers

Answer:

45 mph = x

Step-by-step explanation:

Engineering manager professional, proficient in all levels of Math

SEE TUTORS LIKE THIS

Distance (D) = Rate (R) * Time (T)

For Car  A:  

D = 30T    {Eqn 1}

For Car B:

The Distance D and the time T is the same as for Car A

But, unlike Car A, Car B travels at two different rates.  It travels at 20mph for a time T1.  Then it passes Car A and travels at a rate of x for a period of time T2.

D = (20T1) + (x * T2)

Note that T2 must equal the total time T minus T1, so

D = (20T1) + (x * (T - T1))    {Eqn2}

Substitute Eqn 1 into Enq 2 :   30T = 20T1 + xT - xT1

Rewrite as:  30T = 20T1 + x(T-T1)  {Eqn 3}

At what point do the two cars pass one another?  

Car A travels 30T1  = D1

Car B is traveling in the opposite direction at 20T1 = D2

D2 = D - D1 (where D is the total circular length of the track)

Substituting, 20T1 = D - 30T1.   Or 50T1 = D   {Eqn 4}

Now we can establish a relationship between T and T1 by substituting Eqn1 into Eqn4

D = 30T = 50T1

30T = 50T1

(30/50)T = T1

T1 = (3/5)T   {Eqn 5}

Now substitute Eqn 5 into Eqn 3

30T = 20T1 + x (T-T1)

30T = 20(3/5)T+ x (T - 3/5 T)

30T = 12T +  xT(2/5)

18T = (2/5)x

(5/2)18 = x

45 mph = x

Recall that x is the speed that Car B must travel after it passes Car A.

Simplify - root of 0.25

Answers

Answer:

0.5

Step-by-step explanation:

[tex] \sqrt{0.25} = \sqrt{ \frac{25}{100} } = \frac{5}{10} = 0.5 \\ [/tex]

Answer:

0.5

Step-by-step explanation:

0.25

0.5

×

0.5

(

0.5

)

2

0.5

Cynthia Besch wants to buy a rug for a room that is 20 feet wide and 34 feet long. She wants to leave a uniform strip of floor around the rug. She can afford to buy 392 square feet of carpeting. What dimensions should the rug​ have?

Answers

Answer:

b

Step-by-step explanation:

Write
6
1
2
as an improper fraction.

Answers

Answer:

13/2

Step-by-step explanation:

you do 6*2=12+1=13 which gives ya 13/2

you keep the denominator

A population has mean and standard deviation . Find and for samples of size . Round your answers to one decimal place if needed.

Answers

Answer:

μx = 17

σx = 2.2

Step-by-step explanation:

See attachment for full question.

Given:

μ = 17

σ = 22

[tex]n = 100\σ = 22[/tex]

Required

Determine (i) μx and  (ii) σx

Solving (i): μx

The mean of a sample means is calculated as thus:

μx = μ

Hence:

μx = 17

Solving (ii): σx

σx = σ/√n

So, we have:

σx = 22/√100

σx = 22/10

σx = 2.2

During a football game, a team lost 9 yards on the first play, then gained 3 yards on each of the next 3 plays. Which
integer represents the total number of yards at the end of the first four plays?
O 3
O0
O9
O18

Answers

Answer:

the answer is 0 when you lose nine yards you are at -9 then you gain 3 on each of the next 3 plays so that is 9-9= 0

Step-by-step explanation:

(02.02)
Angle A measures 50 degrees. If angle A is rotated 45 degrees, what is the
measure of angle A'? (4 points)
95 degrees
50 degrees
O 45 degrees
180 degrees
PLS HELP

Answers

Answer is going to be 180 degrees

10 x 10 in exponential form

Answers

Answer:

10^2

Step-by-step explanation:

Answer:

10²

Step-by-step explanation:

There are 2 "10's" being multiplied.

If a decorative sign in the form of a circle has a diameter of 10 feet what is the area of the sign

Answers

if the diameter is 10, the radius is 5 so, if you do pi(r^2) you get pi(25), or about 78.54 feet^2

Work out the value(3^2)^2 x (10^3)^2

Answers

Answer:

81,000,000

Step-by-step explanation:

(3²)² × (10³)²

(9)² × (1000)²

81 × 1000000

81,000,000

Answer:

1000081

Step-by-step explanation:

=3^6+10^6

=81+1,000,000

which two integers is the irrational number √77 between

Answers

Answer:

send me your disc ill help

Step-by-step explanation:

Garrison deposited $500 in an account that earns 5% annual interest compounded annually. If he makes no withdrawals or deposits, what will be the ending balance of his account after 4 years? *

Answers

$90

3% $500= $15
$15 times 6yrs = $90

Considering only functions that have a rate of change less than that represented in the graph, which function has the greatest rate of change?



A.

B.

C.

D.

Answers

Answer:

D.

Step-by-step explanation:

I got it right on the test.

solve please 9²=97. is the answer rational or irrational?

Answers

Answer:

I got you, 81 = 97 or 81, is a rational number.

Step-by-step explanation:

A rational number, denoted by Q is a number which can be written in the form. 81 can be expressed as 811 where both 81 and 1 are integers.

The map of a biking trail is drawn on a coordinate grid.

The trail starts at P(−3, 2) and goes to Q(1, 2).
It continues from Q to R(1, −1) and then to S(8, −1).

What is the total length (in units) of the biking trail?

A. 11
B. 13
C. 14
D. 16

Answers

Answer:

11 units

Step-by-step explanation:

-3-1 = -4 = 4

8-1=7

4+7 = 11

Men have XYâ (or YX) chromosomes and women have XX chromosomes.â X-linked recessive genetic diseasesâ (such as juvenileâ retinoschisis) occur when there is a defective X chromosome that occurs without a paired X chromosome that is not defective. Represent a defective X chromosome with lowercaseâ x, so a child with the xY or Yx pair of chromosomes will have the disease and a child with XX or XY or YX or xX or Xx will not have the disease. Each parent contributes one of the chromosomes to the child.

Required:
a. If a father has the defective x chromosome and the mother hasgood XX chromosomes, what is the probability that a son willinherit the disease?
b. If a father has the defective x chromosome and the mother asgood XX chromosomes, what is the probability that a daughter willinherit the disease?
c. If a mother has one defective x chromosome and one good Xchromosome, and the father has good XY chromosomes, what is theprobability that a daughter will inherit the disease?
d. If a mother has one defective x chromosome and one good Xchromosome, and the father has good XY chromosomes, what is theprobability that a daughter will inherit the disease?

Answers

Answer:

A) 0

B) 0

C) 0

D) 0.5

Step-by-step explanation:

We are told that Men have XY (or YX) chromosomes and women have XX chromosomes

A) If a father has the defective x chromosome and the mother has good XX chromosomes, the four possible outcomes will be;

{xX, YX, YX, xX}

The outcome for the son is;

{YX, YX}

The son will have the disease only if it's xY. Thus, probability of son having the disease is; 0/2 = 0

B) If a father has the defective x chromosome and the mother has good XX chromosomes, the four possible outcomes will be;

{xX, YX, YX, xX}

The outcome for the daughter is;

{xX, xX}

The daughter will have the disease only if it's xx. Thus, probability of daughter having the disease is; 0/2 = 0

C) If a mother has one defective x chromosome and one good Xchromosome, and the father has good XY chromosomes, the possible outcomes are;

{xX, xY, XX, XY}

Outcome for daughter is {xX, XX}

The daughter will have the disease it's xx. Thus, probability of daughter having the disease is; 0/2 = 0

D) If a mother has one defective x chromosome and one good Xchromosome, and the father has good XY chromosomes, the possible outcomes are;

{xX, xY, XX, XY}

The male outcome is;

{XY, xY}

The son will have the disease only if it's xY. Thus, probability of son having the disease is; 1/2 = 0.5

Line a through (2, 3) is parallel to line b with equation y = -1, which point below a lso lies on line a? A (2,9) B(-5, 3) C (0, 1) D (1, 4)

Answers

Answer:

B (-5, 3)

Step-by-step explanation:

The line a passes through point ( 2,3 ).

Line b has equation y= -1

Plot the graph for line b, y=-1 , which is a horizontal line as shown in the attached graph

Plot point (2, 3) and draw the graph of line a, y=3 to form a line a parallel to line b

You will notice that point B (-5, 3) is the one the lies on line a.

The answer option A,(2,9) is incorrect  because it does not lie on any of the lines

The answer option C (0, 1) is incorrect because it lies along the y-axis

The answer option D (1, 4) is incorrect because it does not lie on any of the lines.

Which sequence shows the numbers in order from least to greatest?

Answers

Answer:

A. is the answer did you need an explanation

Please help me solve this equation and show the work show me how you got the answer

Answers

Answer: k=3

Step-by-step explanation:

To solve for k, you want to isolate k.

[tex]\frac{2}{5} (5k+35)-8=12[/tex]            [add both sides by 8]

[tex]\frac{2}{5} (5k+35)=20[/tex]                  [multiply both sides by 5/2]

[tex]5k+35=50[/tex]                       [subtract both sides by 35]

[tex]5k=15[/tex]                               [divide both sides by 5]

[tex]k=3[/tex]

Now, we know that k=3.

+2boxes of 24 pencils each. HOW
have in all?
2. Linda bought a coat for $2265 and a saree for $2150. She gave $5000 to the shopkeeper.
How much money did the shopkeeper return to her?
3. The cost of 21 TY​

Answers

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

[tex]2 \times 24 = 48[/tex]

Thus we have 48 pencils in all.

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

[tex]5000 - (2265 + 2150) = [/tex]

[tex]5000 - 4415 = [/tex]

[tex]585 \: \: dollors[/tex]

Thus the shopkeeper returned her 585 $.

Kevin used 7/8 of a 5 gallon bucket of paint to paint four rectangular walls that are all the same area how much paint did Kevin use on each wall

Answers

Answer with step-by-step explanation:

First, we have to find out how much paint Kevin used. We can write the equation as the following; 5/1 × 7/8 = 4 3/8. Now, we divide 4 3/8 by 4 to calculate how much paint will be used for each wall. 4 3/8 ÷ 4 = 35/32. So to finalize, Kevin used 35/32 gallons to paint each wall.

Hope this helped! (brainliest please)

Answer:

1 3/32 gallons

Step-by-step explanation:

This is 35/32 simplified which 35/32 simplified is the real answer!

Hope this helped :)

The number of pages that Allen, Kevin, Roneisha, and Ben can read in a day is shown below.

Allen read 15% of his 56-page book.
Kevin read 12% of his 64-page book.
Roneisha read 16% of his 42-page book.
Ben read 10% of his 72-page book.

Who can read the greatest number of pages in a day?

Kevin
Allen
Roneisha
Ben

Answers

Allen because 15% of 56=0.15 times 56=8.4

Answer:

allen

Step-by-step explanation:

The amount of money earned on a job is directly proportional to the number of hours worked.If $36 is earned for 8 hours of work, how much is earned for 30 hours of work?

Answers

Answer:

$135

Step-by-step explanation:

first divide 36 by 8

gives you how much you earn for one hour

36/8=4.5

then multiply

4.5 by amount of hours worked

so 4.5*30=135

The amount of money earned on a job for 30 hours is $135.

The amount of money earned on a job is directly proportional to the number of hours worked.

The amount of money earned for 8 hours of work is $36.

We need to determine the amount earned for 30 hours of work.

Let us determine the amount earned per hour.

Thus,

[tex]\begin{aligned}8\;\rm{Hours \;of\;work}&=\$36\\1\;\rm{Hour \;of\;work}&=\$\dfrac{36}{8}\\&=\$4.5 \end{aligned}[/tex]

Therefore, the amount earned per hour is $4.5.

Now, multiply by 30 to get the amount earned for 30 hours.

Thus, the amount of money earned on a job for 30 hours is $135.

To know more about it, please refer to the link:

https://brainly.com/question/2146068

Which of the following best describes weight?

A. The amont of space an object takes up

B. The amont of matter in an object

C. The force on an object due to its mass and gravity

D. The force on an object due to its speed and location​

Answers

Answer:

-The force on an object due to it's mass and gravity

Answer: c). The force on an object due to its mass and gravity.

Explained: because gravity is the force that attracts a body toward the center of the earth, or toward any other physical body having mass.

I hope this was helpful

Solve for x
O 10°
O 189
O 20°
O 22.5°

Answers

Answer:

[tex]\boxed{x=10}[/tex]

Step-by-step explanation:

We are given two angles, which together, have a sum of 90°. We call these complementary angles. The angle ∠EAF is the complement of angle ∠FAB and vice versa.

Therefore, because they sum up to be 90°, we can simply add the angles together and solve for x this way.

[tex]4x+5x=90\\\\9x = 90\\\\\frac{9x}{9} = \frac{90}{9}\\\\\boxed{x = 10}[/tex]

The variable x equals 10. We can go even further to check and verify that this is correct by substituting our original value for x into the equation.

[tex]4(10)+5(10)=90\\\\40 + 50 = 90\\\\90 = 90[/tex]

90 does in fact equal 90, so your final answer is x = 10°.

Hope this helps! :)

Raina runs 7 miles in 80 minutes. At the same rate, how many miles would she run in 64
minutes?

Answers

Answer:

5.6 miles

Step-by-step explanation:

[tex]\frac{80 minutes}{7 miles} = \frac{64 minutes}{x}[/tex]

80x = 448

x = 5.6 miles

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