A random number generator assigned each pepper to one of two groups. The weights of the peppers in each group, given three randomizations, appear in the tables. First Randomization Group A Group B 13.6 9.2 12.1 8.2 15.9 11.5 11.2 13.8 9.7 14.6 Second Randomization Group A Group B 8.2 12.1 13.8 14.6 15.9 13.6 9.2 11.2 9.7 11.5

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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A random number generator assigned each pepper to one of two groups. The weights of the peppers in each group, given three randomizations, appear in the tables.

First Randomization
Group A Group B
13.6 9.2
12.1 8.2
15.9 11.5
11.2 13.8
9.7 14.6
Second Randomization
Group A Group B
8.2 12.1
13.8 14.6
15.9 13.6
9.2 11.2
9.7 11.5
Third Randomization
Group A Group B
8.2 12.1
9.7 13.8
11.5 13.6
14.6 11.2
15.9 9.2

For each table, calculate the mean weight for each group, xA¯and xB¯, and find the difference of the mean of group A and the mean of group B (xA¯−xB¯).

Type the correct answer in each box.

  1. After the first randomization, xA¯is , xB¯is , and (xA¯−xB¯) is .
  2. After the second randomization, xA¯is , xB¯is , and (xA¯−xB¯) is .
  3. After the third randomization, xA¯is , xB¯is , and (xA¯−xB¯) is .
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