A study on caffeine asked volunteers to take a recall test 2 hours after drinking a carbonated drink. Some drank caffeine-free, some drank regular, and others drank a mixture of the two (getting a half-dose of caffeine). The 5-number summaries for each group's scores (number of items recalled correctly) on the memory test are shown below. Complete parts a through d. n Min Q1 Median Q3 Max No Caffeine 15 17 18 21 24 26 Low Caffeine 15 17 18 20 23 25 High Caffeine 15 12 16 19 20 23 a) Describe the W's for these data. b) Name the variables and classify each as categorical or quantitative.

A study on caffeine asked volunteers to take a recall test 2 hours after drinking a carbonated drink. Some drank caffeine-free, some drank regular, and others drank a mixture of the two (getting a half-dose of caffeine). The 5-number summaries for each group's scores (number of items recalled correctly) on the memory test are shown below. Complete parts a through d. n Min Q1 Median Q3 Max No Caffeine 15 17 18 21 24 26 Low Caffeine 15 17 18 20 23 25 High Caffeine 15 12 16 19 20 23 a) Describe the W's for these data. b) Name the variables and classify each as categorical or quantitative.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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