Reference no: EM132852981
1. The scores of the homework 1 assignment for 25 students in DM302 are the following: 0, 2, 5, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 12, 14, 15, 17, 17, 18, 20, 20 Plot a boxplot for these numbers with proper labels and explain how you determine Q1, Q3, and IQR values. Identify outliers if any (with an explanation as well), and comment on these scores' skewness.
2. A sample of data analysts' salaries at a local technology park revealed a mean income of $73,000 with a standard deviation of $2,800.
1. What is the z value of a student earning $80,000?
2. Assume that salaries follow a bell-shaped distribution. Using the empirical rule, what percentage of the analysts earns at least $67,400 but no more than $78,600?
Please show me how theyre done.
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