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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 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
1 using a computer determine what happens to the correlation between x and y if the y values are multiplied by 32
imagine a study where the correlation between some amount of an experimental drug and liver damage yields a value for r
suppose r2 95a explain why this does not provide convincing evidence that the least squares line provides a good fit
imagine a situation where points are removed for which the x values are judged to be outliersnote that this restricts
1 if the normality assumption is violated what effect might this have when computing confidence intervals as described
suppose that the sample means and variances are xoline1 15 xoline2 12 s21 8 s22 24 with sample sizes n1 20 and n2
for two independent groups of subjects you get xoline1 45 xoline2 36 s21 4 s22 16 with sample sizes n1 20 and n2
two methods for training accountants are to be compared students are randomly assigned to one of the two methods at the
responses to stress are governed by the hypothalamus imagine you have two groups of subjects the first shows signs of
1 the 95 confidence interval for the difference between the means using students t is 22 205 what are the practical
a film producer wants to know which of two versions of a particular scene is more likely to be viewed as disturbing one
a course aimed at improving an understanding of good nutrition is attended by 28 students before the course began
the median of 20 difference scores is found to be md 5 there are no tied values and the mckean-schrader estimate of
it is found that of 121 individuals who take a training program on investing in commodities 20 make money during the
in a study dealing with violence between factions in the middle east one goal was to compare measures of depression for