Problem 3: A class has eight assessment tasks over a year. The parallel box-plots show a summary of the marks for the assessments for two students, Jamie and Mariane. Boxplot of Mariane, Jamie 90 80 70 60 Data 50 40 30 20 10 Mariane Jamie 1- Who scored the highest mark? jamie 2- Who scored the lowest mark? mariane 3- What was the range of marks for each student? 4- Who had the greater spread of marks? 5 - What was the interquartile range (IQR) of marks for each student? 6- Who had more marks over 70? Problem 4: The speeds (in megahertz) of 100 semiconductors are used to produce the following descriptive statistics. N Mean StDev, Minimum Q1 Q2 Q3 Maximum 100 695.24 7.42 679.01 690.44 695.1 701.45 709.79 1. plot (by hand) the boxplot and describe the shape of the distribution of speed. 2. Calculate the interquartile range and check if there are any outliers. Problem 5: Find the Mean, Median, Mode, quartiles, range, standard deviation, and interquartile range of the following set of data (do not use Minitab for this exercise): Weight of students in class in lbs.: 120, 135, 100, 145, 160, 180, 190, 200, 120, 210, 180, 137, 180, 125