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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). suppose we would like to take a sample of employees at thejones amp ryan securities firm to see whether the mean year-endbonus is different from the reported mean of $125,500 for thepopulation. a. state the null and alternativehypotheses you would use to test whether the year-end bonuses paidby jones amp ryan were different from the population mean. h 0 : - select your answer - greater than 125,500 greater than or equal to 125,500 equal to 125,500 less than or equal to 125,500 less than 125,500 not equal to 125,500 h a : - select your answer - greater than 125,500 greater than or equal to 125,500 equal to 125,500 less than or equal to 125,500 less than 125,500 not equal to 125,500 b. suppose a sample of 40 jones ampryan 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). c. with = .05 as the level ofsignificance, what is your conclusion? - select your answer - conclude that the year-end bonuses paid by jones amp ryanwere different from the population mean do not conclude that the year-end bonuses paid by jonesamp ryan were different from the population mean answer the next three questions using the critical valueapproach. d. using = .05, what is the criticalvalue for the test statistic? +- e. calculate the test statistic (to 2decimals). f. using = .05, can you concludethat the year-end bonuses paid by jones amp ryan were differentfrom the population mean? - select your answer - yes no ......
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Cusomer_ID_360259 Category: statistics and probability      On: April17th 2012Reply

John Ray

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John Doe

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