A researcher is interested in finding a 90% confidence interval for the mean number minutes students are concentrating on their professor during a one hour statistics lecture. The study included 113 students who averaged 38.4 minutes concentrating on their professor during the hour lecture. The standard deviation was 11.7 minutes. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ? distribution. b. With 90% confidence the population mean minutes of concentration is between and minutes. c. If many groups of 113 randomly selected members are studied, then a different confidence interval would be produced from each group. About percent of these confidence intervals will SIAntain the true population mean minutes of concentration and about percent will not contain the true population mean minutes of concentration.

A researcher is interested in finding a 90% confidence interval for the mean number minutes students are concentrating on their professor during a one hour statistics lecture. The study included 113 students who averaged 38.4 minutes concentrating on their professor during the hour lecture. The standard deviation was 11.7 minutes. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ? distribution. b. With 90% confidence the population mean minutes of concentration is between and minutes. c. If many groups of 113 randomly selected members are studied, then a different confidence interval would be produced from each group. About percent of these confidence intervals will SIAntain the true population mean minutes of concentration and about percent will not contain the true population mean minutes of concentration.

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Description: ### Understanding Confidence IntervalsA researcher is interested in finding a 90% confidence interval for the mean number of minutes students are concentrating on their professor during a one-hour statistics lecture. The study included 113 students

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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