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11.4 Exercise 38

Avg difficulty 2.5

Read the statement and decide whether it is true or false.

the table provides a recent survey of the youngest online entrepreneurs whose net worth is estimated at one million dollars or more. Their ages range from 17 to 30. Each cell in the table illustrates the number of entrepreneurs who correspond to the specific age group and their net worth. Are the ages and net worth independent? Perform a test of independence at the 5% significance level.

Age group\ Net worth value (in millions of US dollars) 1–5 6–24 ≥25 Row total
17–25 8 7 5 20
26–30 6 5 9 20
Column total 14 12 14 40

OpenStax Introductory Business Statistics 2e, 11.4 Test of Independence, exercise 38

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Adapted from Introductory Business Statistics 2e © 2023 Rice University. Licensed under CC BY 4.0. Source: Introductory Business Statistics 2e. Imported at revision 50ec917.