The data below give the ages (on graduation day) of this year\'s recipients of t

Question

The data below give the ages (on graduation day) of this year's recipients of the Bachelor of Science degree at one small college. {21, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 24, 24, 24, 25, 26, 28, 35, 40, 65} a. Find the 5-Number Summary for this data set. b. Lily Grant was the 65-year old graduate. She returned to college at age 60 after retiring from her job with the US Postal Service. Is Lily's age an outlier in this data set? Explain how you know. The data set below shows the hourly wage data collected from a random sample of Delta College students in 2009. a. Make a grouped frequency distribution table for this data with a exist3.00 class width and the first class starting at exist7.00. b. Draw a histogram representing this grouped data

Explanation / Answer

Data in given in ascending order.

Number of observations = 20

A) Minimum = 21

First quartile = median of the lower half of data = 5th observation = 22

Median = mean of 10th and 11th observation = 23

Third quartile = median of upper half = 16th observation = 26

Maximum = 65

B) Interquartile range, IQR= 26-22 = 4

Upper fence = Q3 + 1.5 IQR = 26+1.5x4 = 23

Since 65 is above the upper fence, 65 is an outlier

So, Lily's age is an outlier

P.S - please post different questions separately

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.