Q1. Susan Bellows is comparing the return on equity for two industries. She is convinced that the return on equity for the discount retail industry (DR) is greater than that of the luxury retail (LR) industry. What are the hypotheses for a test of her comparison of return on equity? A) H0: µDR = µLR versus Ha: µDR ≠ µLR. B) H0: µDR = µLR versus Ha: µDR < µLR. C) H0: µDR ≤ µLR versus Ha: µDR > µLR.
Q2. In the process of hypothesis testing, what is the proper order for these steps? A) Collect the sample and calculate the sample statistics. State the hypotheses. Specify the level of significance. Make a decision. B) Specify the level of significance. State the hypotheses. Make a decision. Collect the sample and calculate the sample statistics. C) State the hypotheses. Specify the level of significance. Collect the sample and calculate the test statistics. Make a decision.
Q3. The first step in the process of hypothesis testing is: A) selecting the test statistic. B) the collection of the sample. C) to state the hypotheses.
Q4. Which of the following statements least describes the procedure for testing a hypothesis?
A) Develop a hypothesis, compute the test statistic, and make a decision. B) Compute the sample value of the test statistic, set up a rejection (critical) region, and make a decision. C) Select the level of significance, formulate the decision rule, and make a decision.
Q5. Which of the following is the correct sequence of events for testing a hypothesis? A) State the hypothesis, select the level of significance, compute the test statistic, formulate the decision rule, and make a decision. B) State the hypothesis, formulate the decision rule, select the level of significance, compute the test statistic, and make a decision. C) State the hypothesis, select the level of significance, formulate the decision rule, compute the test statistic, and make a decision.
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发表于 2009-1-13 15:41
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