Before a high-school football game the footballs were inflated to p = 13 psi (pounds per square inch). After the game the mean inflation was 12.5 psi.

Select the null hypothesis H0.


Group of answer choices


0=13


0=12.5


0<13


0>12.5

Answers

Answer 1

Answer:

The null hypothesis is [tex]H_0: \mu = 13[/tex]

Step-by-step explanation:

Before a high-school football game the footballs were inflated to p = 13 psi (pounds per square inch).

This means that, as we are going to test the inflation levels before and after the game, we test at the null hypothesis that it is of 13 psi, that is:

[tex]H_0: \mu = 13[/tex]


Related Questions

Find the area of the credit card:


2 1/4 inch, 3 1/3 inch.

Answers

Answer:

4

Step-by-step explanation:

the answer is 4. good luck.

What is the length of X?

Answers

Answer:

x = 85

Step-by-step explanation:

Its a Pythagorean theorem question, being a^2 + b^2 = c^2.

and knowing that 168 is the entire base we would divide by 2 to get 84 as b.

The new equation would be 13^2 + 84^2 = c^2

Then squaring them to get 169 + 7056 = c^2

Then add them together and square root them [tex]\sqrt{x}[/tex] 7225 = c

The square root is 85 making it equal x.  

Find the circumference of a circle whose radius is 4 feet. Use 3.14 for Pi.

Answers

Answer:

25.12

Step-by-step explanation:

The formula of the circumference of a circle is: C = 2(pi)(r)

Plug in 3.14 for pi and 4 for the radius.

C = 2(3.14)(4)

Multiply.

C = 25.12

Are the polynomial functions even or odd ?

Answers

If you mirror the graph along the x axis and it lies on itself ( mirror image) it is even, if not it is odd.

If you mirror the top graph the high/ low points would be opposite so the top graph is odd

The bottoms graph can be mirrored so the bottom graph is even.

13. What is the pressure on the bottom of a water tank filled to a depth of 4 feet? O A. 1.73 psi OB. 62.4 psi C. 249.6 psi D. 184.2 psi​

Answers

Pressure is defined as the force applied perpendicular to an object's surface per unit area across which that force is dispersed. The correct option is A.

What is pressure?

Pressure is defined as the force applied perpendicular to an object's surface per unit area across which that force is dispersed.

The density of water is equal to 997 kg/m³, while the acceleration due to gravity is 9.81 m/s², also, given the depth of the water is 4 feet(1.2192 meters). Therefore, the pressure on the bottom of a water tank filled to a depth of 4 feet is,

Pressure = ρ × g × H = 997 × 9.81 × 1.2192 = 11924.47 N/m²

Now, If we convert the pressure from N/m² to psi, then we have to divide 11924.47 N/m² by 6895, therefore, the pressure will be,

Pressure = 11924.47 N/m² / 6895 = 1.729 psi ≈ 1.73 psi

Hence, the correct option is A.

Learn more about the Pressure:

https://brainly.com/question/15175692

#SPJ1

The sixth grade class at Kennedy Middle School participated in a fundraiser. Each day they raised twice as much as the day before. On the first day they raised $24.



How much money did they raise over all five days of the fundraiser?

Answer options with 5 options
A.
$120

B.
$240

C.
$360

D.
$384

E.
$744

Answers

Answer:

Day 1- 24

Day 2- 48

Day 3- 96

Day 4- 192

Day 5- 384

Step-by-step explanation:

384, or C.

Find the measure of the arc or angle indicated. NO LINKS.​

Answers

9514 1404 393

Answer:

  10.  A) 120°

  11.  D) 40°

  12.  D) 54°

  13.  A) 101°

Step-by-step explanation:

The applicable rules of angles and arcs are ...

the whole is the sum of the partsarcs of a circle total 360°an inscribed angle intercepts an arc of twice its measure

__

10) Angles C and L intercept the same arc (DE) so will have the same measure.

  15x = 16x -4

  4 = x . . . . . . . . add 4-15x

  arc DE = 2(15x) = 30(4) = 120 . . . degrees

__

11) Arc VW is twice the measure of angle X, so ...

  9x +8 = 2(5x)

  8 = x . . . . . . . . . subtract 9x

  ∠VXW = 5x = 5(8) = 40 . . . degrees

__

12) Arc EFG is twice the measure of angle W, so ...

  70° +FG = 2(88°)

  FG = 106° . . . . . . . . . subtract 70°

Arc FGW is twice the measure of angle E, so ...

  106° +GW = 2(80°)

  GW = 54° . . . . . . . . . . subtract 106°

__

13) Arc ST is twice the measure of angle R. The sum of arcs is 360°.

  RS +ST +TR = 360°

  119° +2(70°) +TR = 360°

  TR = 101° . . . . . . . . subtract 259°

How much principal must be deposited to have a balance of $2,229,
compounded semiannually at 3% for 3 years?

Answers

Answer:

2038.51

Step-by-step explanation:

Compound interest formula:

[tex]FV=PV(1+\frac{i}{n})^{n*t}\\2229=PV(1+\frac{.03}{2})^{2*3}\\2229=PV(1.093443264)\\2037.514547=PV[/tex]

Write (4b^4)^2 without exponents.

Answers

Answer:

(4*b*b*b*b)*(4*b*b*b*b)

Pls help I need a good grade

Answers

5. 12, 6. 14, 7. 36, 8. 17, 9. 8, 10. 24

Answer:

5. 12, 6. 14, 7. 36, 8. 17, 9. 8, 10. 24

Step-by-step explanation:

What is the measure of xº? Extra points !

Answers

Answer:

15 ° is correct answer

How to find right triangle with Pythagorean theorem

Answers

Answer:

By using the formula of;

A² + B² = C²

Where A and B could be either of the 2 legs and C always have to be the hypotenuse of the right triangle. Hypotenuse is the longest leg of the triangle is the leg that's opposite to the right angle of the right triangle.

Hope this helps! I have attached a diagram for u to help you understand:

(08.06 LC)
Identify the factors of x2 + 16y? (5 points)
O (x + 4y)(x + 4y)
O (x + 4y)(x - 4y)
Prime
O (x - 4y)(x - 4y)

Answers

Answer:

Prime

Step-by-step explanation:

2(x?)+16y

O(x+4y)(x+4y)

x²+4xy+4xy+16y²

x²+8xy+16y²

O(x+4y)(x-4y)

x²-4xy+4xy-16y²

x²-16y

Prime

O(x-4y)(x-4y)

x²-4xy-4xy+16y²

x²-8xy+16y²

All are incorrect except prime, so the answer is prime.

---

hope it helps

14) 4.5a = 9.0

15) 4.8b = 36

Problem Solving Strategy: Write an Equation

Write an equation for each problem using the variable -n. Then solve and check the equation.

16) Allan has 84 baseball cards. This is 19 fewer cards than Mike. How many baseball cards does Mike have?

17) Jamie can ride her bike 3 times as fast as Michelle can jog. If Jamie rides her bike at a rate of 12 miles per hour, how fast can Michelle jog?

Problem Solving Strategy: Mental Math

Study each equation, then solve.

18) 5 + r = 6 - r

19) z - 16 = - 16

20) 7n - 7 = 0

Answers

Answer:

hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Step-by-step explanation:

The equation of a circle is (x-1)^2 +(y-2)^2=4. What is the center of the circle and what is the radius of the circle?

Answers

Answer:

Step-by-step explanation:

(x-1)²+(y-2)² =4 compare the given equation with the general one

(x-h)² +(y-k)² =r², where (h, k) are coordinates of the center and r is radius

so center is at ( 1, 2) and radius is 2

what is 1/8 times 2/7 in simplest form

Answers

Answer:

decimal form: 0.0357

fraction form: 375/10000

Step-by-step explanation:

write the image of a point ( 3 - 2) under reflection about x - axis​

Answers

Step-by-step explanation:

I m not sure either u have written (-2).. ans is (3,-2)

Answer:

(3, 2 )

Step-by-step explanation:

Under a reflection in the x- axis

a point (x, y ) → (x, - y ) , then

(3, - 2 ) → (3, 2 )

komplike türkçe karşılığı

Answers

Answer:

football is better

Step-by-step explanation:

football is better

Cevap: Yapılması zor olan

ẞaşarılar dilerim

in right teanglie ABC shown below what is the degree measure of \_ C!!


please help me

Answers

Answer:

20 use https://www.calculator.net/triangle-calculator.html

Step-by-step explanation:

Acute Isosceles Triangle

Side a = 1

Side b = 1

Side c = 0.51764

Angle ∠A = 75° = 1.309 rad = 5/12π

Angle ∠B = 75° = 1.309 rad = 5/12π

Angle ∠C = 30° = 0.5236 rad = π/6

C=30°B=75°A=75°b=1a=1c=0.518

Area = 0.25

Perimeter p = 2.51764

Semiperimeter s = 1.25882

Height ha = 0.5  

Height hb = 0.5

Height hc = 0.96593

Median ma = 0.61966  

Median mb = 0.61966

Median mc = 0.96593

Inradius r = 0.1986  

Circumradius R = 0.51764  

Vertex coordinates: A[0, 0] B[0.51764, 0] C[0.25882, 0.96593]

Centroid: [0.25882, 0.32198]

Inscribed Circle Center: [0.25882, 0.1986]

Circumscribed Circle Center: [0.25882, 0.44829]

+ Show Calculation Steps

Distributive property
2(x + 1)​

Answers

Answer:

Multiply using the distributive property which will give you the answer 2x + 2.

Step-by-step explanation:

Answer:

2x + 1

Step-by-step explanation:

2 * (x + 1) |

              \/

           2x + 1

Identify the type of correlation that is present in the scatterplot

Answers

Answer:

The scatter plot shows a positive correlation.

Answer a is correct because the point is go increased

If A+B+C=[tex]\pi[/tex] show that tan A + tan B +tan C = tan A.tan B.tan C

Answers

Answer:

[tex]a + b + c = \pi \\ = > c= \pi - a - b \\ < = > \tan(c) = \tan(\pi - a - b) = -\tan(a + b) [/tex]

Step-by-step explanation:

we have:

[tex] \tan(a) + \tan(b) + \tan(c) \\ = \tan(a) + \tan(b) - \tan(a + b) \\ = \tan( a) + \tan(b) - \frac{ \tan(a) + \tan(b) }{1 - \tan(a) \tan(b) } \\ = \frac{ ( \tan(a) + \tan(b) ) \tan(a) \tan(b) }{ \tan(a) \tan(b) - 1 } (1)[/tex]

we also have:

[tex] \tan(a) \tan(b) \tan(c) \\ = - \tan(a) \tan(b) \tan(a + b) \\ = \frac{ -(\tan( a ) + \tan(b) ) \tan(a) \tan(b) }{1 - \tan(a) \tan(b) } \\ = \frac{( \tan(a) + \tan(b)) \tan(a) \tan(b) }{ \tan(a) \tan(b) - 1 } (2)[/tex]

from (1)(2) => proven

middle school math (05.02)The area of the parallelogram below is square meters. 6 m 8 m 2 m Numerical Answers Expected! (Picture included)​

Answers

I’m pretty sure it’s 48 square meters

PLS HELPPPPPP OMG PLSSSSSSSSSSSSSS LOOK AT PHOTO PLSSSS HELPPP

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Answer: B

Step-by-step explanation: The line crosses the Y axis at 3

Ill do anthing please help!!

Answers

Answer: 2π ft^2

Step-by-step explanation:

Area of a circle= π x the radius ^2

here your diameter is 4, and the radius is equivalent to half of the diameter so your radius equals 2.

A= π x 2^2

your answer will be the first one

one banana contains 105 calories. what percent of a 2000-calorie diet is contained in one banana

Answers

More than 6% .   I don't know exactly how much, but I know it's more than 6% .  Hope that helps..                                                                                                                                                                                                                                        

                                                                         

Calculate the work done.
A crane lifts 5,000 newtons to the top of a roof which is 6 meters high.

Answers

Answer:

30, 000 Nm

Step-by-step explanation:

F = mg = 5000 N

h = 6 m

Work done

W = mgh = 5000*6= 30, 000 Nm

Answer:

30000 nm

Step-by-step explanation:

(05.05 HC) Figure ABCD has vertices A(-4, 1), B(2, 1). C(2, -5), and D(-4, -3). What is the area of figure ABCD?

A:24
B:30
C:36
D:45​

Answers

Answer:

The answer is A

Step-by-step explanation:

I got it  right on the test.

Write a paragraph (4-5 sentences) explaining how we can help or change racism to black people


No copying from internet please

Answers

Answer

A few ways we could stop racism against black people in this country is to stop the perpepuation of black stereotypes in media. Such as the loud, aggressive black man, or the rude, catty black woman. It causes a harmful view on black people and can result in racial profiling. Another way to combat this racism is to fight off systemic racism. Black people who have unique names, usually African names, are more likely to get turned down for a job when they turn in their resume to an establishment. This is because they automatically assume that they'll be trouble, and won't be a good worker.

help what's the answer​

Answers

Answer:

2nt one

Step-by-step explanation:

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