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Wall Street securities firms paid out record year-end bonuses of $125,500 per employee for 2005 (Fortune, February 6, 2006).
Wall Street securities firms paid out record year-end bonuses of $125,500 per employee for 2005 (Fortune, February 6, 2006). Suppose we would like to take a sample of employees at the Jones & Ryan securities firm to see whether the mean year-end bonus is different from the reported mean of $125,500 for the population.State the null and alternative hypotheses you would use to test whether the year-end bonuses paid by Jones & Ryan were different from the population mean. H0: Ha: Suppose a sample of 40 Jones & Ryan employees showed a sample mean year-end bonus of $118,000. Assume a population standard deviation of $31,000 and compute the p-value (to 4 decimals). With = .05 as the level of significance, what is your conclusion? Answer the next three questions using the critical value approach. Using = .05, what is the critical value for the test statistic? +/- Calculate the test statistic (to 2 decimals). Using = .05, can you conclude that the year-end bonuses paid by Jones & Ryan were different from the population mean
