4.You would like to compare the distribution of salary for minorities versus non$minorities.To obtain numerical summaries or any graph (except boxplots) forcurrent salary by minority status,we need to split the data file. UseData> SplitFileand chooseOrganize output by groups. The grouping variable is minorityclassification.Note:Doing this successfully does not produce any noticeable changes in theSPSS windows; there will only be a few short lines of output in the Outputwindow confirming the split.Create histograms separately for minorities and non$minorities. Compare andcontrast the distribution of salary for the two groups.Can we use the samedescription for both histograms?5.Obtain descriptive statistics for current salary by minority status.Rememberthe data is still split, so just generate the descriptive statistics by selectingAnalyze> Descriptive Statistics> Frequenciesand then choose the summarymeasures you want under theStatisticsbutton.Fill in the basic summary measures for current salary by minority status.MinorityNon3MinorityMean:Standard Deviation:Median:IQR = Q3–Q1:

366.To create side$by$side boxplots for current salary by minority status, the datafile shouldNOTbe split.Go back to theSplit Filedialog box and chooseAnalyze all cases, do not create groups.Again, the only change will be oneline of output confirming the data has been “un$split.”Next useGraphs>Legacy Dialogs> BoxplotwithSimpleandSummaries for groups of cases.Minority Status is the variable for the category axis, and current salary is thevariable.How does the distribution for current salary compare for minorities versusnon$minorities(basedonthehistograms,descriptives,andside$by$sideboxplots)?Task 2:Time Plots.The data setoldfaithful.savcontains the date and duration oferuptions (in minutes) of the Old Faithful geyser.The data was collected severaltimes per day over 23 consecutive days.1.Open theoldfaithful.savdata set.2.Make a time plot for the data usingAnalyze> Forecasting> Sequence Charts.What does the graph show? Are there any patterns to the process?3.Does the plot appear to be stable?Would it be reasonable to conclude these data are a random sample oferuptions?Would it make sense to go on to make a histogram of these data? a QQ plot ofthese data? descriptive summaries? Why or why not?

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