A retail sales associate claims that the tax preparation methods of adults are distributed as follows: 25% go to an accountant, 20% do their taxes by hand, 40% use a computer software, 6% get help from a friend and 9% use a tax prep service. The tax preparation company randomly selects adults and asks them how they prepare their taxes. Test the associate's claim at 1% significance Round to the fourth as needed. Categories Observed Frequency Expected Frequency Acct 171 Hand 116 Comp 295 Friend 47 Service 147 Test Statistic: Degrees of Freedom: p-val:

A retail sales associate claims that the tax preparation methods of adults are distributed as follows: 25% go to an accountant, 20% do their taxes by hand, 40% use a computer software, 6% get help from a friend and 9% use a tax prep service. The tax preparation company randomly selects adults and asks them how they prepare their taxes. Test the associate's claim at 1% significance Round to the fourth as needed. Categories Observed Frequency Expected Frequency Acct 171 Hand 116 Comp 295 Friend 47 Service 147 Test Statistic: Degrees of Freedom: p-val:

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.5: Interpreting Data

Problem 1C

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