1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
WITCHER [35]
3 years ago
9

How big is the home field advantage in the National Football League (NFL)? To investigate, we select a sample of 80 games from t

he 2011 regular season1 and find the home team scored an average of 25.16 points with a standard deviation 10.14 points. In a separate sample of 80 different games, the away team scored an average of 21.75 points with a standard deviation of 10.33 points. Use this summary information to find a 90%c onfidence interval for the mean home field advantage, µH- µA, in points scored.
The 90% confidence interval is______ to________ .
Mathematics
1 answer:
ElenaW [278]3 years ago
5 0

Answer:

0.74 to 6.06

Step-by-step explanation:

The groups are independnet,

SE(xh bar-xa bar)=sqrt [sh^2/nh+sa^2/na]=sqrt [10.1^2/80+10.3^2/80]=1.61

At df=157, the t critical is 1.65

90%c.i=(xh bar-xa bar)+-tcritical SE(xh bar-xa bar)

=(25.2-21.8)+-1.65*1.61

=0.74 to 6.06

You might be interested in
Please solve for X and show step by step equation
larisa [96]

Answer:

6

Step-by-step explanation:

Firstly, this is the pythagoreans theorem a^2+b^2=c^2

Now that we know that, we will solve for x.

(x+2)^2+x^2=100 ( The 100 is just 10 squared )

Finally, you solve for x and get 6.

3 0
2 years ago
Read 2 more answers
Are the triangles similar? How do you know? A. yes, by SAS B. yes, by SSS C. yes, by AA D. no
WARRIOR [948]
No, because 30.4+84.6+66=181
the sum of a triangle=180
so they are not similar. 
4 0
3 years ago
Read 2 more answers
I’m trying to find this I have an answer but I don’t know if it’s right 10points
Zolol [24]
Aint it 150 decimeters?
4 0
3 years ago
Help please and thank you
kramer
The altitude to the hypotenuse of a right triangle is the mean proportional between the segments into which it divides the hypotenuse ⇒<span>

</span>altitude = √(9*3) = √27

<span>By the Pythagorean theorem:

y = </span>√(9² + (√27)²) = √(81+27) = √108 = 6√3  ← answer
3 0
3 years ago
The domain of the function <br> g(x) = √(x2−3x−4) is? Use the fishball method
frosja888 [35]
Result: 
 {x<= -1 or x>= 4 and x belongs to real numbers}

6 0
3 years ago
Other questions:
  • Solve the equation.<br> 2^-x = 1<br><br> PLEASE HELP!!!
    8·1 answer
  • Please help!! | show work and do not guess. :)
    7·1 answer
  • Tony, Martin, and Alfredo play together on a basketball team. During practice one day, they each shot 20 free throws. Tony made
    13·1 answer
  • Each day Marvin exercises for 48 minutes how many days will it take him to exercise for 576 minutes?
    10·2 answers
  • Complete the statements below that show y = x2 + 2x - 1 being converted to vertex form.
    7·1 answer
  • Which point is a reflection of T(-6.5, 1) across the x-axis and the y-axis? A. point U B. point V C. point W D. point X
    7·1 answer
  • A baby eats 8 oz. of formula in 15 min.at this rate,how much formula can the baby eat in 2 hours​
    5·1 answer
  • Kellen got an e-mail from his bank on June 7th, June 21st, July 5th, and July 19th. Use inductive reasoning to predict the next
    14·2 answers
  • Use the diagram to find the height of statue.round to the nearest tenth
    12·1 answer
  • When a number * is divided by 22, the quotient is 74 and the remainder is 0. What will be the quotient when * is divided by 11?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!