A researcher is interested in finding a 95%confidence interval for the mean number of timesper day that college students text. The studyincluded 109 students who averaged 41.8 texts perday. The standard deviation was 14.9 texts. Roundanswers to 3 decimal places where possible.a. To compute the confidence interval use a?distribution.b. With 95% confidence the population meannumber of texts per day is betweenandtexts.c. If many groups.of 109 randomly selectedmembers are studied, then a different confidenceinterval would be produced from each group. About95 percent of these confidence intervals willcontain the true population number of texts perday and about 5percent will not contain thetrue population mean number of texts per day.

Givensample size(n)=109Mean(x)=41.8standard deviation(s)=14.9

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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