Business
Engineering
Math
Science
Social ScienceEmma 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:
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:
Expert Answer
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 >...
Math
Statistics
Related Statistics Q&A
Find answers to questions asked by student like you
Show more Q&A addQ: (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...
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...
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...
Q: Part A, B, C
A: Here, the population standard deviation is unknown, so the t-distribution is used.It is provided tha...
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...
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...
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 ...
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...
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...
