12.70 (C2)The article "The Association Between Television Viewing andIrregular Sleep Schedules Among Children Less Than 3 Yearsof Age" (Pediatrics [2005]: 851-856) reported the accompany-ing 95% confidence intervals for average TV viewing time(in hours per day) for three different age groups.95% Confidence IntervalAge Group2adaBeodolgmLess than 12 Months(0.8, 1.0)n z (1.4, 1.8) b n12 to 23 MonthsTsq 24 to 35 Months nsom odi (2.1, 2.5)celbet &L9a. Suppose that the sample sizes for each of the three age-group samples were equal. Based on the given confidencegai intervals, which of the age-group samples had the great-ton est variability in TV viewing time? Explain your choice.b. Now suppose that the sample standard deviations for thethree age-group samples were equal, but that the threesample sizes might have been different. Which of thethree age-group samples had the largest sample size?ali Explain your choice.c. The interval (0.7, 1.1) is either a 90% confidence intervalalg or a 99% confidence interval for the mean TV viewingolo time calculated using the sample data for children lessthan 12 months old. Is the confidence level for this inter-val 90% or 99%? Explain your choice.

(a) According to the provided data, the age group 24 to 35 months is the one with greater…

Answered: 12.70 (C2) The article "The Association…

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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