Statistics, 12th Edition Test Bank

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Ch. 1Statistics, Data, and Statistical Thinking1.1The Science of Statistics1Define StatisticsMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.Solve the problem.1) Which of the following is not the job of a statistician?A) implementing new procedures based on the results of a studyB) determining what information is relevant in a given problemC) collecting numerical information in the form of dataD) determining whether the conclusions drawn from a study are to be trustedSHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.2) What is statistics?1.2Types of Statistical Applications1Define Descriptive and Inferential StatisticsMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.Solve the problem.1) A recent report stated "Based on a sample of 180 truck drivers, there is evidence to indicate that, on average,independent truck drivers earn more than company-hired truck drivers." Does this statement describedescriptive or inferential statistics?A) Inferential statisticsB) Descriptive statistics2) A survey of high school teenagers reported that 92% of those sampled are interested in pursuing a collegeeducation. Does this statement describe descriptive or inferential statistics?A) Descriptive statisticsB) Inferential statistics3) The average age of the students in a statistics class is 22 years. Does this statement describe descriptive orinferential statistics?A) Descriptive statisticsB) Inferential statistics4) From past figures, it is predicted that 21% of the registered voters will vote in the March primary. Does thisstatement describe descriptive or inferential statistics?A) Inferential statisticsB) Descriptive statistics5) Parking at a large university has become a very big problem. University administrators are interested indetermining the average parking time (e.g. the time it takes a student to find a parking spot) of its students. Anadministrator inconspicuously followed 250 students and carefully recorded their parking times. Theuniversity is interested in using the information from the sample of 250 students collected to learn informationabout the entire student parking population. Would this be an application of descriptive or inferentialstatistics?A) Inferential statisticsB) Descriptive statisticsPage 1

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