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]
4 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]4 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
A power company calculates a person's monthly bill from the number of kilowatt-hours (kWh), x, used. The function b(x) = { 0.150
Tresset [83]

Answer:

B

Step-by-step explanation:

the photosynthesis the of 14 showed me by diameting the equation of the perpendicularcity of the dude with lactose intolerantcey

7 0
3 years ago
Please help answer need help pllllease
Natalka [10]
The answer is 24 I think
3 0
3 years ago
A survey was carried out among 120 school children looked at which type of meat they preferred. 55%said they preferred lamb,20%
Readme [11.4K]

No. of children in lamb, chicken, duck, and turkey category is 66, 24, 18 and 12 respectively.

<h3>What is percentage ?</h3>

Percentage is the value per hundredth.

According to the given question a survey was carried out among 120 school children looked at which type of meat they preferred. 55% said they preferred lamb,20% said they preferred chicken, 15% preferred duck and 10% turkey and we have to calculate no. of children in each category.

55% said they preferred lamb, So the no. of students i this category is

= (55/100)×120

= 66 children.

20% said they preferred chicken, So the no. of children in this category is

= (20/100)×120

= 24 children.

15% said they preferred duck, So the no. of children in this category is

= (15/100)×120

= 18 children.

10% said they preferred turkey, So the no. of children in this category is

= (10/100)×120

= 12 children.

learn more about percentage here :

brainly.com/question/19670755

#SPJ4

4 0
1 year ago
a line of best fit for the data is y=0.9x-4.5, where x represents age in year, and in years, and y represents hourly pay, in dol
Wittaler [7]

Answer:

$18

Step-by-step explanation:

Given:

y = 0.9x - 4.5

Where,

x = age in years

y = hourly pay in dollars

what is the best prediction for the hourly pay of a 25 year old?

That is, find y when x=25

y = 0.9x - 4.5

= 0.9(25) - 4.5

= 22.5 - 4.5

= 18

y = $18

The prediction for the hourly pay of a 25 year old is $18

8 0
3 years ago
M*(x+y)+4y/(x^2-xy-y^2)=(x+2y)/(x^2-xy-Y^2),find the value of M
dybincka [34]

Answer: M  = \frac{x-2y}{x+y}  

Step-by-step explanation:

\frac{M(x+y)+4y}{x^{2}-xy-y^{2}  } =\frac{(x+2y)}{x^{2} -xy-y^{2} }

M (x + y) + 4y = x + 2y (Multiply x^{2} - xy-y^{2} in both sides)

M (x + y)  = x + 2y - 4y

M (x + y)  = x - 2y  (Divide (x+y) from both sides)

M  = \frac{x-2y}{x+y}  

3 0
3 years ago
Other questions:
  • Find the midpoint of the segment with the following endpoints. (- 4, 5) and (- 1, 1)
    15·1 answer
  • Suppose a farmer wants to fence off a rectangular area with three sides of a rectangle, using a river as the fourth side. He has
    15·1 answer
  • Tina has earned a total of 9644 frequent flyer miles by taveling between twin falls and preston. she has made this trip 4 timed.
    14·1 answer
  • The line y = 2x-5 cuts the x and y axes at point A and B respectively.
    13·1 answer
  • Does the type of program people watch influence how much they eat? A total of 94 college students were randomly assigned to one
    9·1 answer
  • - If m <br> measures of the two angles.
    14·1 answer
  • A skier is trying to decide wether or not to buy a season ski pass. A daily pass costs $79. A season ski pass costs $400. The sk
    13·2 answers
  • ______________________ rocks are common at subduction zones because the igneous rock gets compressed, causing foliation.
    15·1 answer
  • Somebody pls help I have a math finals tomorrow it is 11:30 pm and I can't sleep because I am so nervous and worried
    7·2 answers
  • Henry buy a machine on January at a cost of 24,000 The machine is deprecated using the double declined method The
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!