A publisher wants to estimate the mean length of time (in minutes) all adults spend reading newspapers. To determine this estimate, the publisher takes a random sample of 15 people and obtains the results below. From past studies, the publisher assumes σ is 1.7 minutes and that the population of times is normally distributed.Sample Data (in minutes): 8, 6, 9, 10, 11, 6, 7, 7, 12, 7, 11, 6, 8, 9, 8Task: Construct the 90% and 99% confidence intervals for the population mean. Which interval is wider? If convenient, use technology to construct the confidence intervals.Question: The 90% confidence interval is [___, ___]. (Round to one decimal place as needed.)Instructions: Enter your answer in the edit fields and then click Check Answer.There are 2 parts remaining to be completed.

Given information- Sample size, n = 15 Population standard deviation, σ = 1.7 minutes Now, degree of freedom is given by- Degree of freedom, df = n - 1 Degree of freedom, df = 15-1 = 14 The given sample is- 8, 6, 9, 10, 11, 8, 6, 7, 7, 12, 7, 11, 8, 6, 8

Math

Statistics

A publisher wants to estimate the mean length of time (in minutes) all adults spend reading newspapers. To determine this estimate, the publisher takes a random sample of 15 people and obtains the results below. From past studies, the publisher assumes o is 1.7 minutes and that the population of times is normally distributed. 8. 9. 10 11 8. 7 7 12 7 11 8. 8. Construct the 90% and 99% confidence intervals for the population mean. Which interval is wider? If convenient, use technology to construct the confidence intervals. The 90% confidence interval is ( ). (Round to one decimal place as needed.)

A publisher wants to estimate the mean length of time (in minutes) all adults spend reading newspapers. To determine this estimate, the publisher takes a random sample of 15 people and obtains the results below. From past studies, the publisher assumes o is 1.7 minutes and that the population of times is normally distributed. 8. 9. 10 11 8. 7 7 12 7 11 8. 8. Construct the 90% and 99% confidence intervals for the population mean. Which interval is wider? If convenient, use technology to construct the confidence intervals. The 90% confidence interval is ( ). (Round to one decimal place as needed.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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