MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
8
Transcribed Image Text:A sample of 40 children from New York State showed that the mean time they spend
watching television is 28 hours per week with a standard deviation of 4 hours. Another
sample of 35 children from California showed that the mean time spent by them
watching television is 25.5 hours per week with a standard deviation of 5 hours.Using a
5% significance level, can you conclude that the mean time spent watching television
by children in New York State is different than that for children in California? Assume
that the standard deviations for the two populations are equal.
O a. Children in New York State spend same time, on average, watching TV than
children in California.
O b. Children in New York State spend not less time, on average, watching TV than
children in California.
O c. children in New York State spend less time, on average, watching TV than
children in California.
O d. Children in New York State spend different time, on average, watching TV than
children in California.
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