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Time to Complete a Degree: A researcher wanted to determine if the mean time to complete a bachelor's degree was different depending on the selectivity of the first institution of higher education that was attended. The following data represent a random sample of 12th-graders in .1992 who earned their degree by December 2000 Highly Selective Not Rated Open-door Nonselective Selective 4.5 5 4.7 3.1 2.6 5.5 7.3 4.2 3.8 4.1 5.5 5.6 5.7 5.2 3.4 4.6 6.9 2.3 4.5 4.3 4.1 5.1 4.5 3.9 5.1 5.9 4.7 4.6 2.5 4.3 4.2 2.3 4.3 5.1 4,4 6.4 4.3 4.4 4.3 3.8 5.6 4.2 4 4.8 4.7 5.1 4.1 5.5

Time to Complete a Degree: A researcher wanted to determine if the mean time to complete a bachelor's degree was different depending on the selectivity of the first institution of higher education that was attended. The following data represent a random sample of 12th-graders in .1992 who earned their degree by December 2000 Highly Selective Not Rated Open-door Nonselective Selective 4.5 5 4.7 3.1 2.6 5.5 7.3 4.2 3.8 4.1 5.5 5.6 5.7 5.2 3.4 4.6 6.9 2.3 4.5 4.3 4.1 5.1 4.5 3.9 5.1 5.9 4.7 4.6 2.5 4.3 4.2 2.3 4.3 5.1 4,4 6.4 4.3 4.4 4.3 3.8 5.6 4.2 4 4.8 4.7 5.1 4.1 5.5

MATLAB: An Introduction with Applications
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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Time to Complete a Degree: A researcher wanted to determine if the mean time to complete a bachelor's degree was different depending on the selectivity of the first institution of higher education that was attended. The following data represent a random sample of 12th-graders in .1992 who earned their degree by December 2000 Highly Not Rated Open-door Nonselective Selective Selective 4.5 5 4.7 3.1 2.6 5.5 7.3 4.2 3.8 4.1 5.5 5.6 5.7 5.2 3.4 4.6 6.9 2.3 4.5 4.3 4.1 5.1 4.5 4 3.9 5.1 5.9 4.7 4.6 2.5 4.3 4.2 2.3 4.3 5.1 4.4 6.4 4.3 4.4 4.3 3.8 5.6 4.2 4 4.8 4.7 5.1 4.1 5.5
Transcribed Image Text:Time to Complete a Degree: A researcher wanted to determine if the mean time to complete a bachelor's degree was different depending on the selectivity of the first institution of higher education that was attended. The following data represent a random sample of 12th-graders in .1992 who earned their degree by December 2000 Highly Not Rated Open-door Nonselective Selective Selective 4.5 5 4.7 3.1 2.6 5.5 7.3 4.2 3.8 4.1 5.5 5.6 5.7 5.2 3.4 4.6 6.9 2.3 4.5 4.3 4.1 5.1 4.5 4 3.9 5.1 5.9 4.7 4.6 2.5 4.3 4.2 2.3 4.3 5.1 4.4 6.4 4.3 4.4 4.3 3.8 5.6 4.2 4 4.8 4.7 5.1 4.1 5.5
Plot the Probability plots for each treatment level. Are they (1 ?normally distributed (2 .Write the null hypothesis and the alternative hypothesis (2 .Find the ANOVA table. (round to five decimal places) (3 What is your decision about the null hypothesis, consider (4 3α = 0.05 If your decision in part (4) was reject, perform Tukey test to (5 determine which pairwise means are significantly different :a = 0.05 using a familywise error rate of a) How many pairwise comparisons are possible among the.5 .?treatment levels X4 b) Compute x1,x2, x3, and.5 c) Compute the test statistic, 40, for each pairwise.5 .comparison d) Write the null hypothesis and the alternative hypothesis.5 .for each pairwise comparison ) What is your decision about the null hypotheses, Explain.5 .your answers
Transcribed Image Text:Plot the Probability plots for each treatment level. Are they (1 ?normally distributed (2 .Write the null hypothesis and the alternative hypothesis (2 .Find the ANOVA table. (round to five decimal places) (3 What is your decision about the null hypothesis, consider (4 3α = 0.05 If your decision in part (4) was reject, perform Tukey test to (5 determine which pairwise means are significantly different :a = 0.05 using a familywise error rate of a) How many pairwise comparisons are possible among the.5 .?treatment levels X4 b) Compute x1,x2, x3, and.5 c) Compute the test statistic, 40, for each pairwise.5 .comparison d) Write the null hypothesis and the alternative hypothesis.5 .for each pairwise comparison ) What is your decision about the null hypotheses, Explain.5 .your answers
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