Ten years ago, 35% of a brokerage firm’s clients only had a single account, 25% had 2 accounts, and the remaining had 3 or more accounts. In a sample of 300 current clients, 114 have a single account, 69 have 2 accounts, and the remaining have 3 or more accounts. At the 10% level of significance, does it appear the proportions have changed?

Ten years ago, 35% of a brokerage firm’s clients only had a single account, 25% had 2 accounts, and the remaining had 3 or more accounts. In a sample of 300 current clients, 114 have a single account, 69 have 2 accounts, and the remaining have 3 or more accounts. At the 10% level of significance, does it appear the proportions have changed?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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