This box plot is a graph of the 5 Number Summary for each restaurant. minx Q Med

Question

This box plot is a graph of the 5 Number Summary for each restaurant. minx Q Med Q maxx McDonalds minx Q Medmaxx In-n-Out a) How close are the two medians to one another? b) What percent of the data values are found between Qi and Qs? c) What is the range of each box? This range is called the Inner Quartile range (TQR). d) What percent of the data is along the "Whisker" from the min to Qi? What percent of the data is along the "Whisker" along Qs to the Max? e) How would you characterize the drive through times for each restaurant after viewing the data presented in this manner?

Explanation / Answer

Ans:

a)medians for both are same.

b)50% of the data lies between the Q1 and Q3.

(as Q1 have 25% data below it and Q3 have 75% data below it)

c)IQR for Macdonald is approximately 2 units

IQR for in and out is approximately 3 units.

d)25% of the data is along the whisker from min to Q1 and 25% of the data is along the whisker from Q3 to max.

e)As,IQR of Macdonald is lower than the IQR of in and out.

So,drive through times of macdonald has lower variability than in and out.

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