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Mathematics, 01.12.2020 22:40 Shavaila18
An investment firm claims that over the course of the last 5 years, at least 77% of all of their clients have made a profit on their investments. A federal investigator believes this claim to be false. The investigator surveys 159 individuals who have invested money with the firm in the last 5 years, and finds that 114 of them have profited from their investments. Test for evidence that the investment firm's claims are not true. Use a significance level of a=0.05
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An investment firm claims that over the course of the last 5 years, at least 77% of all of their cli...
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