A researcher is interested in finding a 90% confidence interval for the mean number minutesstudents are concentrating on their professor during a one hour statistics lecture. The studyincluded 119 students who averaged 33.3 minutes concentrating on their professor during thehour lecture. The standard deviation was 10.3 minutes. Round answers to 3 decimal placeswhere possible.a. To compute the confidence interval use a ? distribution.b. With 90% confidence the population mean minutes of concentration is betweenandminutes.c. If many groups of 119 randomly selected members are studied, then a different confidenceinterval would be produced from each group. Aboutpercent of these confidenceintervals will contain the true population mean minutes of concentration and aboutpercent will not contain the true population mean minutes of concentration.

From the provided information, Sample size (n) = 119 Mean (x̄) = 33.3 Population standard deviation…

Answered: A researcher is interested in finding a…

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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Please help with 6 a-b

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