Daily time spent (in minutes) on the website for 30 males 210 930 30 30 10 5 690 300 60 210 210 45 90 210 40 150 30 45 45 150 60 15 Daily time spent (in minutes) on the website for 30 females 45 75 20 45 30 180 90 180 210 120 30 30 60 120 60 60 60 240 210 270 270 45 150 20 150 120 15 120 60 20 120 60 60 90 10 120 210 115 0
Daily time spent (in minutes) on the website for 30 males 210 930 30 30 10 5 690 300 60 210 210 45 90 210 40 150 30 45 45 150 60 15 Daily time spent (in minutes) on the website for 30 females 45 75 20 45 30 180 90 180 210 120 30 30 60 120 60 60 60 240 210 270 270 45 150 20 150 120 15 120 60 20 120 60 60 90 10 120 210 115 0
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
A local college newsletter reported that the average American college student spends one hour (60 minutes) on a social media website daily. But you wonder if there is a difference between males and females. Attached below is a sample of 60 users of the website (30 males and 30 females) and their recorded daily time spent on the website. Complete (a) and (b) below.
A. Assuming that the variances in the population of times spent on the website per day are equal, is there evidence of a difference in the mean time spent on the website per day between males and females? (Use a 0.05 level of significance.)
Let μ1 be the mean daily time spent on the website for male college students and μ2
be the mean daily time spent on the website for female college students. Determine the hypotheses.
be the mean daily time spent on the website for female college students. Determine the hypotheses.
Determine the test statistic.
Wha is the conclusion?
B. In addition to equal variances what other assumption is necessary in (a)?
Wha is the conclusion?
B. In addition to equal variances what other assumption is necessary in (a)?
Transcribed Image Text:Sample times
Daily time spent (in minutes) on the website for 30 males
210 930 30 30 10 5 690 300 60 210 210 210 270 270 150
45 90 210 40 150 30 45 45 150 60 15 45 20 150 120
Daily time spent (in minutes) on the website for 30 females
45 30 180 90 180 210
120 30 30 60 120
45
75 20
60 240
60
60
15
60
120
60 20 120
60
10 120
90 210
115
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