Test Bank All Chapters,

Sta�s�cs Updated Edi�on 13e James McClave, Terry Sincich (Test Bank All Chapters, 100% Original Verified, A+ Grade) Answers At The End Of Each Chapter 1 / 4

McClave Statistics 13e Chapter 1 Test MULTIPLE 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 study B) collecting numerical information in the form of data C) determining whether the conclusions drawn from a study are to be trusted D) determining what information is relevant in a given problem Objective: (1) Define Statistics SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 2) What is statistics? Objective: (1) Define Statistics MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 3) A recent report stated "Based on a sample of 250 truck drivers, there is evidence to indicate that, on average, independent truck drivers earn more than company - hired truck drivers." Does this statement describe descriptive or inferential statistics? A) Descriptive statistics B) Inferential statistics Objective: (1) Define Descriptive and Inferential Statistics 4) A survey of high school teenagers reported that 83 % of those sampled are interested in pursuing a college education. Does this statement describe descriptive or inferential statistics? A) Inferential statistics B) Descriptive statistics Objective: (1) Define Descriptive and Inferential Statistics 5) The average age of the students in a statistics class is 22 years. Does this statement describe descriptive or inferential statistics? A) Inferential statistics B) Descriptive statistics Objective: (1) Define Descriptive and Inferential Statistics 6) From past figures, it is predicted that 30 % of the registered voters will vote in the March primary. Does this statement describe descriptive or inferential statistics? A) Descriptive statistics B) Inferential statistics Objective: (1) Define Descriptive and Inferential Statistics 7) Parking at a large university has become a very big problem. University administrators are interested in determining the average parking time (e.g. the time it takes a student to find a parking spot) of its students. An administrator inconspicuously followed 250 students and carefully recorded their parking times. The university is interested in using the information from the sample of 250 students collected to learn information about the entire student parking population. Would this be an application of descriptive or inferential statistics? A) Descriptive statistics B) Inferential statistics Objective: (1) Define Descriptive and Inferential Statistics 1 2 / 4

8) As part of an economics class project, students were asked to randomly select 500 New York Stock Exchange (NYSE) stocks from the Wall Street Journal. As part of the project, students were asked to summarize the current prices (also referred to as the closing price of the stock for a particular trading date) of the collected stocks using graphical and numerical techniques. Would this be an application of descriptive or inferential statistics? A) Inferential statistics B) Descriptive statistics Objective: (1) Define Descriptive and Inferential Statistics SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 9) In a survey of 2 000 high school students, 14 % of those surveyed read at least one best - seller each month. Give an example of a descriptive statement and an inferential statement that could be made based on this information. Objective: (1) Define Descriptive and Inferential Statistics MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 10) Which of the following is not an element of descriptive statistical problems? A) data are displayed visually in graphs B) information revealed in a data set is summarized C) predictions are made about a larger set of data D) patterns in a data set are identified Objective: (1) Define Descriptive and Inferential Statistics Answer the question True or False. 11) When we take data obtained from a sample and make generalizations or predictions about the entire population, we are utilizing inferential statistics. A) True B) False Objective: (1) Define Descriptive and Inferential Statistics 12) Statistics involves two different processes, describing sets of data and drawing conclusions about the sets of data on the basis of sampling. A) True B) False Objective: (1) Define Descriptive and Inferential Statistics Solve the problem. 13) Parking at a university has become a problem. University administrators are interested in determining the average time it takes a student to find a parking spot. An administrator inconspicuously followed 9 0 students and recorded how long it took each of them to find a parking spot. Identify the population of interest to the university administration. A) the entire set of faculty, staff, and students who park at the university B) the students who park at the university between 9 and 10 AM on Wednesdays C) the 9 0 students about whom the data were collected D) the entire set of students who park at the university Objective: (1) Identify Elements of Statistics 14) Parking at a university has become a problem. University administrators are interested in determining the average time it takes a student to find a parking spot. An administrator inconspicuously followed 20 0 students and recorded how long it took each of them to find a parking spot. Identify the variable of interest to the university administration. A) students who drive cars on campus B) time to find a parking spot C) number of students who cannot find a spot D) number of empty parking spots Objective: (1) Identify Elements of Statistics 2 3 / 4

15) An assembly line is operating satisfactorily if fewer than 3 % of the phones produced per day are defective. To check the quality of a day's production, the company randomly samples 1 0 phones from a day's production to test for defects. Define the population of interest to the manufacturer. A) all the phones produced during the day in question B) the 1 0 responses: defective or not defective C) the 3 % of the phones that are defective D) the 1 0 phones sampled and tested Objective: (1) Identify Elements of Statistics 16) An insurance company conducted a study to determine the percentage of cardiologists who had been sued for malpractice in the previous two years. The sample was randomly chosen from a national directory of doctors. What is the variable of interest in this study? A) all cardiologists in the directory B) the doctor's area of expertise (i.e., cardiology, pediatrics, etc.) C) the responses: have been sued/have not been sued for malpractice in the last two years D) the number of doctors who are cardiologists Objective: (1) Identify Elements of Statistics 17) A study attempted to estimate the proportion of Florida residents who were willing to spend more tax dollars on protecting the Florida coastline from environmental disasters. Thirty - nine hundred Florida residents were surveyed.Which of the following is the population used in the study? A) all Florida residents B) all Florida residents who lived along the coastline C) Florida residents willing to spend more tax dollars protecting the coastline from environmental disasters D) the 3900 Florida residents who were surveyed Objective: (1) Identify Elements of Statistics 18) A study attempted to estimate the proportion of Florida residents who were willing to spend more tax dollars on protecting the Florida beaches from environmental disasters. Twenty - two hundred Florida residents were surveyed.Which of the following describes the variable of interest in the study? A) the response to the question "Do you live along the beach?" B) the response to the question "Do you use the beach?" C) the 2200 Florida residents surveyed D) the response to the question, "Are you willing to spend more tax dollars on protecting the Florida beaches from environmental disasters?" Objective: (1) Identify Elements of Statistics 19) Parking at a large university has become a very big problem. University administrators are interested in determining the average parking time (e.g. the time it takes a student to find a parking spot) of its students. An administrator inconspicuously followed 250 students and carefully recorded their parking times. Identify the population of interest to the university administration. A) the entire set of students that park at the university B) the 250 students that data was collected from C) a single student that parks at the university D) the parking time, defined to be the amount of time the student spent finding a parking spot Objective: (1) Identify Elements of Statistics 3

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