Emma wants to estimate the percentage of people who use public transportation in a city. She surveys 140 individuals andfinds that 62 use public transportation.Find the confidence interval for the population proportion with a 99% confidence level.zo. 10 0.05 0.025 Iz0.01 0.0051.2821.645 1.960 2.3262.576Use the table of common z-scores above.· Round the final answer to three decimal places.Provide your answer below:

Question
Asked Feb 28, 2019
144 views
Emma wants to estimate the percentage of people who use public transportation in a city. She surveys 140 individuals and
finds that 62 use public transportation.
Find the confidence interval for the population proportion with a 99% confidence level.
zo. 10 0.05 0.025 Iz0.01 0.005
1.2821.645 1.960 2.3262.576
Use the table of common z-scores above.
· Round the final answer to three decimal places.
Provide your answer below:
help_outline

Image Transcriptionclose

Emma wants to estimate the percentage of people who use public transportation in a city. She surveys 140 individuals and finds that 62 use public transportation. Find the confidence interval for the population proportion with a 99% confidence level. zo. 10 0.05 0.025 Iz0.01 0.005 1.2821.645 1.960 2.3262.576 Use the table of common z-scores above. · Round the final answer to three decimal places. Provide your answer below:

fullscreen
check_circle

Expert Answer

Step 1

Given total number of individuals surveyed = 140 = n

Total number os people using public transport = 62.

Let p be proportion of people using public transport = 62/140 = 0.44 

As we can see np >...

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Statistics

Related Statistics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: (a) In the random number table, assign the digits 0 through 8 to the event "successful surgery" and ...

A: Total number of digits assigned to event "successful surgery" (0-8) = 9Total number of digits assign...

question_answer

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support...

A: As there is no any estimates available, the sample proportion is assumed to be 0.50, that is, 50%.He...

question_answer

Q: How much does a sleeping bag cost? Let's say you want a sleeping bag that should keep you warm in te...

A: (a)Using the provided data, the sample mean and standard deviation can be calculated using Excel fun...

question_answer

Q: Part A, B, C

A: Here, the population standard deviation is unknown, so the t-distribution is used.It is provided tha...

question_answer

Q: See attachment.

A: Given X(n,p) is a binomial random variable with parameters n,p.n is total number of trailsp is proba...

question_answer

Q: A student takes a multiple choice test that has 11 questions. Each question has four choices. The st...

A: Identifying the distribution:It is given that the student takes a multiple choice test that has 11 q...

question_answer

Q: A study was conducted to see whether participants would ignore a sign that said, "Elevator may stick...

A: Explanation:Here, the experimenter controls the presence/absence of the confederates, as its effect ...

question_answer

Q: A computer system uses passwords that contain exactly 6 characters, and each character is 1 of the 2...

A:  We have to make a password of 6 digits whose digits can be 26 lowercase alphabets, 26 uppercase alp...

question_answer

Q: One major assumption with independent t tests is called “homogeneity of variances.” Describe this as...

A: Independent Two Samples t-test:Suppose there are two populations independent of one another. A resea...