Texts: time, in days, for a sample of the Thomas Supply Company Incorporated invoices: 13, 1313, 20, 26, 27, 27, 32, 34, 34, 35, 35, 11, 42, 44, 44, 37, 48, 50, 51, 55, 56, 36, 62, CE, 67, 38, 82
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a. Determine the first and third quartiles.
First quartile:
Third quartile:
b. Determine the second decile and the eighth decile.
Second decile:
Eighth decile:
c. Determine the 67th percentile.