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
MAVERICK [17]
3 years ago
12

It was reported that in a survey of 4764 American youngsters aged 6 to 19, 12% were seriously overweight (a body mass index of a

t least 30; this index is a measure of weight relative to height). Calculate a confidence interval using a 99% confidence level for the proportion of all American youngsters who are seriously overweight. (Round your answers to three decimal places.)
Mathematics
1 answer:
zepelin [54]3 years ago
4 0

Answer:

Step-by-step explanation:

confidence level for the proportion of all American youngsters who are seriously overweight is (0.137, 0.163)

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.

In which

z is the zscore that has a pvalue

Read

You might be interested in
Writing an Equa
kakasveta [241]

Answer:

Step-by-step explanation:

(3,1) lies below the vertex, so the parabola opens downwards.

Equation for a down-opening parabola with vertex (2,3):

y = a(x-2)² + 3, a<0

Plug in (3,1) and solve for a:

1 = a1² + 3

a  = -2

y = -2(x-2)² + 3

6 0
2 years ago
1. Kim's age is twice that of her sister. When you add Kim's age to her sister's age, you get 36. How old is each sister? (a) Wr
Jlenok [28]
A)
Kim's age=k
Sister's age=s
k=2s
k+s=36
b)
k=2s
k+s=36
k=36-s
2s=36-s
3s=36
s=12
12*2=24
Kim is 24 and her sister is 12

Hope this helps :)

6 0
3 years ago
Read 2 more answers
Help pls i don’t understand graphs!! &lt;3
spayn [35]
C is correct answer I think :)
8 0
2 years ago
a wall is 2m at one end and 2.4m at the other end. the area of the wall is 26.4m squared. what is the length of the wall?
andrew11 [14]
Since the height is different on both ends, we can assume that the wall is a trapezoid. Knowing that, we can replace the measures we know in the formula and our onky variable is the length of the wall - we only need to isolate it. A= ((b+B)h)/2 26.4=((2+2.4)h)/2 52.8=4.4h h=12
6 0
2 years ago
Which graph has an amplitude of 1/2?
Serjik [45]

Answer:

Step-by-step explanation:

The only graph shown in the question doesn't have amplitude 1/2. look for a graph of a periodic wave function that has maximum y-value 1/2 (0.5) and minimum y-value 1/2 (0.5), or if it is not oscillating around the x-axis, verifies that the distance between minimum y-value and maximum y-value is "1" (one). This is because the amplitude is half of the peak-to-peak distance.

Look at the attached image as example.

8 0
3 years ago
Other questions:
  • Solve for x. (x - 4)(x - 4) = 0 a.-16 b. -4 c. 4 d. 16
    5·2 answers
  • some friends go to the store to buy school supplies. Noel spends 4.89. Holly spends 3 times as much as Noel/ Kris spends $ 12.73
    13·2 answers
  • Answer for the blank?​
    10·2 answers
  • Select the correct answer.
    10·2 answers
  • Find the value of w.<br> 1080<br> 400<br> w<br> z<br> w = [?]
    5·1 answer
  • Angle Sum Theorem Acellus<br> 20 120 y = ?
    13·1 answer
  • HELP ME PLZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!​
    8·1 answer
  • Find the positive value of x if 4 - 2x] = 6.
    8·1 answer
  • Which expression means "the difference between two times six and five?"
    13·2 answers
  • Choose the model for the problem 3/4 divided by 5.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!