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  3. 3 an investment firm claims that the mean increase

3 An investment firm claims that the mean increase in price per share of companies...

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3 An investment firm claims that the mean increase in price per share of companies it invests in is 1 95 per share every year A national sample of 100 companies shows that the mean increase in price per share is 1 82 with a standard deviation of 0 30 Would you be skeptical of the firm s claim Write and test hypotheses to evaluate the claim Explain your findings

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