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Practice_FINAL_2084.doc", filename="Practice_FINAL_2084.doc", filename="Practice

# Practice_FINAL_2084.doc", filename="Practice_FINAL_2084.doc", filename="Practice

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Final Exam Statistics for Business and Economics Laurel Chiappetta Spring 2084 254 points Name:__________________________________ Section: 1 PM 2:30 PM 4 PM Student ID# (required):____________________

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1. (54 points) For each of the following problems, identify the appropriate null and alternative hypotheses. Choose from the output provided to test your hypotheses at the given significance level, provide your decision, and support (from the output) for the decision. a. A federal agency responsible for enforcing laws governing weights and measures routinely inspects packages to determine whether the weight of the contents is at least as what is advertised on the package. A random sample of 18 containers whose packaging states that the contents weigh 8 oz was drawn. Can we conclude at the 1% significance level that on average the containers are mislabeled? i. H 0 :______________________ H 1 :______________________ ii. Output(s) used:______________ iii. Decision: iv. Support: b. The cruise ship business is rapidly increasing. Long associated with seniors, it now appears that younger people are choosing a cruise as their vacations. To determine whether this is true, an executive for a cruise line sampled passengers 2 years ago and this year to determine their ages. i. H 0 :______________________ H 1 :______________________ ii. Output(s) used:______________ iii. Decision: iv. Support: c. In recent years, a number of state governments have passed mandatory seat-belt laws. Although the
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