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1 what is the difference between the three ways of describing results comparing percentages comparing means and
1 what is a measure of central tendency distinguish between the mean median and mode2 what is a measure of variability
1 what is a scatterplot2 what happens when a scatterplot shows the relationship to be curvilinear3 what is a regression
1 how does multiple correlation increase accuracy of prediction2 what is the purpose of partial correlation3 when a
your favorite newspaper newsmagazine or news-related website is a rich source of descriptive statistics on a variety of
dollinger matyja and huber 2008 studied the correlations between overall exam performance in an upper-division
ask 20 students on campus how many units credits they are taking as well as how many hours per week they work in paid
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1 distinguish between the null hypothesis and the research hypothesis when does the researcher decide to reject the
1 distinguish between a type i and a type ii error why is your significance level the probability of making a type i
1 what influences the probability of a type ii error2 what is the difference between statistical significance and
in an experiment one group of research participants is given 10 pages of material to proofread for errors another group
in professor dres study the average number of errors detected in the print and computer conditions was 384 and 132
assignment1 describe what type of data analysis would use linear correlation coefficients and line of best fits
question 1business management accounting finance economics hr ohamps lawas described on the safe work australia website
1 based on your knowledge of the definition of the various measures of short-run cost complete this
in a factory only two machines a and b manufacture washers neither machine is perfect machine a produces defective
questiona what is the null hypothesis for levenes test for homogeneity of variancesb what are the numerator and
1 what is the probability of obtaining a test score above 80 for a distribution with a m 75 and an sd 638 try drawing
1 a company is investigating fraudulent activity by its employees it is known that 5 of the employees perform
the previous study indicated that several factors may be risk factors for premature delivery among them a high basal
assignmenta spring has a nonlinear force law such that the force necessary to compress the spring is given
1 given the following information would your decision be to reject or fail to reject the null hypothesis in addition
assignment 1you are employed as a statistician for a company that makes household products which are sold by part-time