We are going to see how to use StatCrunch to randomly sample from a database in StatCrunch directly. You are going to select a random sample of 30 students by clicking onDataand then selectingSample. Select all of the columns except 'Response_id' (click on the first column name we want 'Class format' then hold down 'Shift' and click on the last column name 'Shoe size'), enter the sample size of 30 and check the box 'Sample all columns at one time':

Answer 1. and 2. below in a Word or similar document and then attach to this post. Document attached should be either a Word or .pdf file.Be sure you are working with your sample of 30 random students and NOT the entire population.Chooseonequalitativevariable with at least 3 categories and complete(a)-(c)below. (a)Consider all appropriate graphical displays we have covered. Choose one graph type that best displays the qualitative sample of data and include it in your document. Be sure to give a title and label all axes. Include a sentence or two, without the use of 'I', justifying your choice. This should not be an 'opinion' but demonstrate statistical reasoning. For example, why is this graph preferable to another appropriate choice or what features of the data does it display? (b)Which measures of center (mean,median, andmode) can be computed? (c)Choose one measure from(b)above to describe the center or typical value of your chosen variable. Use StatCrunch to compute the value for your sample data.Remember selectingStatthenSummary Statsonly works for numbers but you can selectStatthenTablesand click onFrequencyor use your graph to help you find the summary measure/s.

1. Chooseone quantitativevariable and complete below working with your sample of 30 random students. (a)Consider all appropriate graphical displays we have covered. Choose one graph type that you think best displays the quantitative sample of data and include it in your document. Be sure to give a title and label all axes. Include a sentence or two, without the use of 'I', justifying your choice. This should not be an 'opinion' but demonstrate statistical reasoning. For example, why is this graph preferable to another appropriate choice or what features of the data does it display? (b)For your chosen quantitative variable use StatCrunch to compute the mean,median, andmode.Don't forget units! (c)If you had to choose between the mean and median to characterize the center of your distribution, which would be the most appropriate for this quantitative variable and why? (d)For the sample of quantitative variable you collected, calculate thestandard deviation,5-number summary(minimum, lower quartile, median, upper quartile, and maximum), andinterquartile range. (e)If you had to choose between the standard deviation and interquartile range to characterize the variability of your sample, which would be the most appropriate and why? (f)Use the sample mean and standard deviation you calculated from(c)and(d). to calculate thez-scoreof the first student's response in your sample. Be sure to give the first student's response or show the working. Based on your z-score, would the first student's response be considered unusual in comparison to your sample of MAT156 students? Why or why not?