Use the given confidence interval to find the margin of error and the sample mean.(73.0,86.8).....The sample mean is.(Type an integer or a decimal.)In a random sample of 18 people, the mean commute time to work was 31.5 minutes and the standard deviation was 7.2 minutes. Assume the population is normallydistributed and use a t-distribution to construct a 98% confidence interval for the population mean u. What is the margin of error of µ? Interpret the results.The confidence interval for the population mean u is ( D-(Round to one decimal place as needed.)

Name: Use the given confidence interval to find the margin of error and the
Uploaded: 2024-03-20T07:07:00.000Z
Channel: Bartleby
Description: Use the given confidence interval to find the margin of error and the sample mean.(73.0,86.8).....The sample mean is.(Type an integer or a decimal.)In a random sample of 18 people, the mean commute time to work was 31.5 minutes and the standard devi

Hello, thanks for your question but according to our policy I am answering the very first question .…

Answered: Use the given confidence interval to…

Math

Advanced Math

Use the given confidence interval to find the margin of error and the sample mean. (73.0,86.8) ..... The sample mean is (Type an integer or a decimal.)

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

See similar textbooks

Similar questions

Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 25. (Round your answer to three decimal places.)
Use the Student's t distribution to find tc for a 0.90 confidence level when the sample is 6. (Round your answer to three decimal places.)
Tina catches a 14-pound bass. She does not know the population mean or standard deviation. So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds. Find the t and calculate a 95% (α = .05) confidence interval.
How do I find the adjusted confidence level for NORM.S.IN() in excel? What will the adjusted confidence level be for 95% for example. Thx.
Plot the point given in polar coordinates. (-2.-4) A/2 7/2 A/2 A/2 Find three additional polar representations of the point, using -2n < 8 < 2n. (r, e) = (smallest 0-value) (r, e) = (r, e) = (largest 8-value)
Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 17. (Round your answer to three decimal places.)
If you want to be confident in your estimation of a confidence interval, you should use….
Use the Student's t distribution to find tc for a 0.90 confidence level when the sample is 25. (Round your answer to three decimal places.)
Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 3. (Round your answer to three decimal places.)
A tank contains 18 gallons of water to start, 8 gallons of water flow into the tank while 10 gallons of water flow out of the tank per minute. Write a differential for the amount of water A(t) (in gallons) in the tank at time t in minutes. ? =0 A(0)= ? Solve the differential equation: A(t)= ? Note: use A,A', etc instead of A(t), A'(t) in your answers. After you set up your differential equation you will have to set it equal to zero so that WeBWorK will understand your answer, do this in a way so that the highest order derivative has a positive coefficient.
A random sample of 64 shoppers showed that they spend an average of $27.31 per visit at the Sunday Mornings Bookstore. The standard deviation of the population is $2.14. Find the 90% confidence interval of the true mean. Please include all work showing how you found your answer.
Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtained a 95% confidence interval of (45,60). What is the value of the margin of error? Choose the correct answer below. A. 15 mm B. 52.5 mm O c. 7.5 mm O D. 1.96