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
Stells [14]
3 years ago
11

A survey of 1000 air travelers1 found that prefer a window seat. The sample size is large enough to use the normal distribution,

and a bootstrap distribution shows that the standard error is . Use a normal distribution to find a 90% confidence interval for the proportion of air travelers who prefer a window seat. Round your answers to three decimal places.
Mathematics
1 answer:
Ludmilka [50]3 years ago
5 0

Answer:

90% confidence interval for the true proportion of air travelers who prefer the window seat is (0.575, 0.625)

Step-by-step explanation:

We have the following data:

Sample size = n = 1000

Proportion of travelers who prefer window seat = p = 60%

Standard Error = SE = 0.015

We need to construct a 90% confidence interval for the proportion of travelers who prefer window seat. Therefore, we will use One-sample z test about population proportion for constructing the confidence interval. The formula to calculate the confidence interval is:

(p-z_{\frac{\alpha}{2}}\sqrt{\frac{p(1-p)}{n}}, p+z_{\frac{\alpha}{2}}\sqrt{\frac{p(1-p)}{n}})

Since, standard error is calculated as:

SE=\sqrt{\frac{p(1-p)}{n} }

Re-writing the formula of confidence interval:

(p-z_{\frac{\alpha}{2}} \times SE, p+z_{\frac{\alpha}{2}} \times SE)

Here, z_{\frac{\alpha}{2}} is the critical value for 90% confidence interval. From the z-table this value comes out to be 1.645.

Substituting all the values in the formula gives us:

(0.6 - 1.645 \times 0.015, 0.6 + 1.645 \times 0.015)\\\\ = (0.575, 0.625)

Therefore, the 90% confidence interval for the true proportion of air travelers who prefer the window seat is (0.575, 0.625)

You might be interested in
A ferris Wheel has a radius of 65 feet. What is the circumference of the wheel?​
MAXImum [283]

Answer:

63 in.3 that's what I got so I hope it's right

7 0
3 years ago
Help plz!! Will give brainliest
r-ruslan [8.4K]

Answer:

C is the sorrect because those both lines are equal

Step-by-step explanation:

6 0
3 years ago
What is the answer to 118÷12 ?
svetlana [45]
The anwser is 9.8333333333
3 0
3 years ago
Read 2 more answers
Diego says that 108 cubes with an edge length of 1/3 inch are needed to fill a rectangle prism that is 3 inches by 1 inch by 1 1
RUDIKE [14]

Answer:

Step-by-step explanation:

Option C) 4 cubic inches is the volume of the rectangular prism. Step-by-step explanation: It is given that, 108 cubes with an edge length of 1/3 inch are needed to fill a rectangular prism. Therefore, the volume of the rectangular prism is equal to the volume of the 108 cubes needed to fill that rectangular prism.

3 0
3 years ago
Read 2 more answers
Solve for x <br><br> 3x-5=-x+3
sashaice [31]

Answer:

(3x - 5 = -x + 3) x = 2

Step-by-step explanation:

3x - 5 = -x + 3

3x = -x + (3 +5)

3x=-x + 8

(3x + x ) = 8

4x = 8

4/8 =2

x = 2

4 0
1 year ago
Other questions:
  • A balloon has a circumference of 16 cm. use the circumvents to approximate the surface area of the balloon to the nearest Square
    12·2 answers
  • The equation d = 16t^2 gives the distance d in feet that a golf ball falls in t seconds. How many seconds will it take a golf ba
    11·1 answer
  • How to solve a variable?​
    15·1 answer
  • Tonya opens a credit card in which the minimum monthly payment is 10%. Her current balance is $1,950, not including the finance
    7·2 answers
  • What is the slope of the line that passes through (2, 12) and (4, 20)
    12·2 answers
  • 7/5+2/5x=31/15+7/3x+1/3
    6·1 answer
  • Awesome Almonds wants to see if their new almond flavor is enjoyed more by high school or middle school students. They decide to
    13·2 answers
  • Evaluate the expression x+2y when x=2 and y=−2.5.
    11·2 answers
  • Solve for y<br> y/6-4=2<br> y= what
    12·1 answer
  • A number is less than 30 but greater than 10.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!