g nowIn an effort to counteract student cheating, the professor of a large class created four versions of a midterm exam, distributing the four versions among the 304students in the class. After the exam, some students from the class got together and petitioned to nullify the results on the grounds that the four versions werenot equal in difficulty.To investigate the students' assertion, the professor examined the means and variances of the scores on the different versions of the exam, obtaining thefollowing information (the exam had 200 possible points).GroupVersion AVersion BVersion CVersion DSample Sample Samplesizemeanvariance76426.476428.076541.476416.2Send data to calculator V157.1147.2151.5159.3Taking the 76 scores for each version of the exam as a sample of scores for that version, the professor performed a one-way, independent-samples ANOVA testof the equality of the population mean scores for the four versions.Answer the following, carrying your intermediate computations to at least three decimal places and rounding your responses to at least one decimal place.ExplanationSend data to Excel(a) What is the value of the mean square for treatments (the"between groups" mean square) that would be reported in theANOVA test?(b) What is the value of the mean square for error (the "withingroups" mean square) that would be reported in the ANOVAtest?CheckO Search0W GroupVersion AVersion BVersion CVersion D3°Faining nowSample SampleSamplesizemean76767676ExplanationSend data to calculator V157.1147.2151.5159.3Samplevariance426.4428.0541.4416.2Taking the 76 scores for each version of the exam as a sample of scores for that version, the professor performed a one-way, independent-samples ANOVA testof the equality of the population mean scores for the four versions.Answer the following, carrying your intermediate computations to at least three decimal places and rounding your responses to at least one decimal place.CheckSend data to Excel(a) What is the value of the mean square for treatments (the"between groups" mean square) that would be reported in theANOVA test?(b) What is the value of the mean square for error (the "withingroups" mean square) that would be reported in the ANOVAtest?XO Search0S0HWEspañol?0

Given Information: Group Sample size Sample mean Standard variance Version A 76 157.1 426.4…

In an effort to counteract student cheating, the professor of a large class created four versions of a midterm exam, distributing the four versions amon students in the class. After the exam, some students from the class got together and petitioned to nullify the results on the grounds that the four vers not equal in difficulty. To investigate the students' assertion, the professor examined the means and variances of the scores on the different versions of the exam, obtaining following information (the exam had 200 possible points). Group Version A Version B Version C Version D Sample Sample Sample size mean variance 76 157.1 426.4 76 147.2 428.0 76 151.5 541,4 159.3 416.2 76 Send data to calculator Send data to Excel Taking the 76 scores for each version of the exam as a sample of scores for that version, the professor performed a one-way, independent-samples ANC of the equality of the population mean scores for the four versions. Answer the following, carrying your intermediate computations to at least three decimal places and rounding your responses to at least one decimal plac (a) What is the value of the mean square for treatments (the "between groups" mean square) that would be reported in the ANOVA test? (b) What is the value of the mean square for error (the "within groups" mean square) that would be reported in the ANOVA

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.CT: Chapter Test

Problem 24CT: Show the sample space of the experiment: toss a fair coin three times.