The following 10 scores were input in the gradebook for Prof. Roberts's class. 15, 74, 77, 78, 81, 82, 94, 95, 95, 187 Complete the parts below to identify any outlilers. (a) Let Q, be the lower quartile and O, be the upper quartile of the data set. Find O, and Q; for the data set. 2; = 0 O3 = 0 ? (b) Find the interquartile range (IQR) of the data set. IQR = 0 ? (c) Calculate a lower boundary using Q,-1.5 - IQR. Calculate an upper boundary using Q3+1.5 - IQR. (Note that 1.5 - IQR means 1.5 times the IQR.) Lower boundary: 0 Upper boundary: 0 ? (d) Any values less than the lower boundary or greater than the upper boundary are considered outliers. Identify all the outliers of the data set. If there is more than one outlier, separate them with commas. If there are no outliers, click "None". Outliers: 0 None

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