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
Alisiya [41]
3 years ago
14

In a survey of 23312331 ​adults, 730730 say they believe in UFOs. Construct a 99 %99% confidence interval for the population pro

portion of adults who believe in UFOs. A 9999​% confidence interval for the population proportion is ​(nothing​,nothing​). ​(Round to three decimal places as​ needed.) Interpret your results. Choose the correct answer below. A. With 9999​% ​probability, the population proportion of adults who do not believe in UFOs is between the endpoints of the given confidence interval. B. The endpoints of the given confidence interval shows that 9999​% of adults believe in UFOs. C. With 9999​% ​confidence, it can be said that the sample proportion of adults who believe in UFOs is between the endpoints of the given confidence interval. D. With 9999​% ​confidence, it can be said that the population proportion of adults who believe in UFOs is between the endpoints of the given confidence interval.

Mathematics
1 answer:
serg [7]3 years ago
8 0

Answer:

0.288 < p < 0.338

Step-by-step explanation:

We have 2331 adults polled and 730 said they believe in UFOs.  We are to construct a 99% confidence interval for the population proportion.  We are told to round to 3 decimal places as needed.  

We need to find p-hat and q-hat

p-hat = 730/2331 = 0.313

q-hat = 1 - p-hat = 1 - 0.313 = 0.687

Since the sample size is greater than 30, we use a z-value for 99% confidence, which is 2.575

See attached photo for the construction of the confidence interval

You might be interested in
Which statement or inequalities describe the number line graph?
Gennadij [26K]

Answer:

Step-by-step explanation:

( - ∞ , - 3 ) ∪ [ - 1 , ∞ )

4 0
2 years ago
Simplify the expression. 34 • 3
bekas [8.4K]

Answer:

102

Step-by-step explanation:

34*3=102

the dot in the middle is just another way to say that it is multiplying the equation so it just mean that your are multiplying 34 by 3 which is 102

3 0
3 years ago
A single die is rolled. Find the odds in favor of rolling a number greater than 5
NeX [460]

Answer:

A die has 6 numbers.

So 6 numbers them being
1, 2, 3, 4, 5, 6

There’s only one number greater then 5 which is 6.
Since its 6 numbers, a die has a 1/6 chance of getting your desired number.

So it’s a 1/6 chance.

8 0
2 years ago
-3(X - 8) - (x + 5) - 23
rjkz [21]

Answer: −

3

X

−

x

−

4

Step-by-step explanation:

7 0
2 years ago
The end of an hour hand on a clock is 5.5 inches from the center. How far will the hour hand travel over three full days?
EastWind [94]

Answer:

  • 103.62 inches

Step-by-step explanation:

Hour hand = radius = 5.5 in

It will travel one full circle in one day, and 3 full circles in 3 days.

<u>The travel distance is:</u>

  • 3C = 3(2πr) = 6*3.14*5.5 in = 103.62 in
4 0
3 years ago
Other questions:
  • Which transformation is shown ?
    14·2 answers
  • Please I really need help with 10-17
    12·1 answer
  • How many sign changes are in the polynomial f(x) = 3x3 + 7x2 + 9x - 1
    9·1 answer
  • Find the surface area of a cylinder with a radius of 38 centimeters and a height of 123 centimeters
    9·2 answers
  • Select all the angles of rotation that produce symmetry for this flower.
    13·1 answer
  • hamburger heaven is having a lunch special where customers buy one 1/4 pound cheeseburger and get one free. if they set aside 10
    9·2 answers
  • What is the slope of the line shown in the graph below?
    10·2 answers
  • Find the area of a regular hexagon with a side length of 10 cm
    14·2 answers
  • 11.) Mrs. Collins is buying supplies for her classroom. Pencils cost
    13·1 answer
  • Helppppppp pleaseeee
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!