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main activity consider the following list of variables and graphsa scores on a fairly easy examination in statisticsb
1 write a brief summary of what you learned in this activity about how features of distributions are related to graphs
1 after you have matched the graphs to the variables describe each distribution and any unusual features eg is the
consider the following group of histograms and box plotseach box plot corresponds to one of the histograms match the
1 what features of a distribution determine whether the mean and the median will be similar when does the mean exceed
collecting the data the class will be divided into an even number of teams of at least two students each and the teams
a geneticist postulates that in the progeny of a certain dihybrid cross the four phenotypes should be present in the
does the likelihood of a particular crime vary depending on the day of the weekto find out the number of crimes for
for a random sample of 200 adults each adult was classified as having a high or low income and each was asked whether
you want to compare the effects of two different cold medicines on reaction time suppose you measure the decrease in
1 when there are many tied values speculate on whether the wilcoxon-mann-whitney test will have more power than the
1 why would you not recommend the strategy of testing for equal variances and if not significant using the anova f test
referring to box 102 verify that for the following data msbg 144 and mswg 1259g1g2g39167108615139nbsp6nbsp2 consider
for the following data verify that you do not reject with the anova f testing with alpha 05 but you do reject with
consider the following anova summary tablesource of variationdegrees of freedomsum of squaresmean squarefbetween
a computer program reports that for a 2-by-3 anova with 15 observations in each group msa 400 msb 200 msinter 200
1 a researcher reports a p-value of 001 with the anova f test describe what conclusions are reasonable based on this
1 a researcher reports that a test for normality was performed and that based on this test no evidence of non-normality
consider a 2-by-2 design with population meansnbspnbspfactor bnbspnbsplevel 1level 2factor alevel 1mu1 110mu2 70level
consider a 2-by-2 design with population meansnbspnbspfactor bnbspnbsplevel 1level 2factor alevel 1mu1 10mu2 20level
a computer program reports that for a 4-by-5 anova with 10 observations in each group msa 600 msb 400 msinter 300
1 five tests are performed aimed at comparing the medians of dependent groups the p-values are 24 001 005 12 04 which
1 for a one-way contingency table having four categories the frequencies corresponding to each category are 23 14 8 32
1 despite any problems it might have summarize how you would justify using students t-test to compare two independent
for two independent groups 1000 bootstrap samples are generated and it is found that there are 10 instances where the