Sullivan Fundamentals of Statistics 6e Chapter 1 Test SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Provide an appropriate response. 1 What is statistics? Objective: 1.1 Define statistics and statistica

Sullivan Fundamentals of Statistics 6e Chapter 1 Test SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Provide an appropriate response. 1) What is statistics? Objective: (1.1) Define statistics and statistical thinking. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 2) Which of the following is not true of statistics? A) Statistics involves collecting and summarizing data. B) Statistics is used to answer questions with 100% certainty. C) Statistics is used to draw conclusions using data. D) Statistics can be used to organize and analyze information. Objective: (1.1) Define statistics and statistical thinking. Determine whether the underlined value is a parameter or a statistic. 3) In a survey conducted in the town of Atherton, 2 2 % of adult respondents reported that they had been involved in at least one car accident in the past ten years. A) statistic B) parameter Objective: (1.1) Explain the process of statistics. 4) 2 3 .2% of the mayors of cities in a certain state are from minority groups. A) statistic B) parameter Objective: (1.1) Explain the process of statistics. 5) A study of 2,300 college students in the city of Pemblington found that 11 % had been victims of violent crimes. A) statistic B) parameter Objective: (1.1) Explain the process of statistics. 6) 51. 6 % of the residents of Idlington Garden City are female. A) parameter B) statistic Objective: (1.1) Explain the process of statistics. 7) Telephone interviews of 3 8 5 employees of a large electronics company found that 55 % were dissatisfied with their working conditions. A) parameter B) statistic Objective: (1.1) Explain the process of statistics. 8) The average age of the 65 students in Ms. Hope's political science class is 21 years 11 months. A) parameter B) statistic Objective: (1.1) Explain the process of statistics. 9) Mark retired from competitive athletics last year. In his career as a sprinter he had competed in the 100 - meters event a total of 328 times. His average time for these 328 races was 10.2 5 seconds. A) statistic B) parameter Objective: (1.1) Explain the process of statistics. 1 Fundamentals of Statistics 6e Michael Sullivan (Test Bank All Chapters, 100% Orig inal Verified, A+ Grade) ( Answers At The End Of Chapters) 1 / 4

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Provide an appropriate response. 10) A survey of 1,538 American households found that 30 % of the households own a DVD recorder. Identify the population, the sample, and the individuals in the study. Objective: (1.1) Explain the process of statistics. 11) A survey of 1,365 American households found that 68 % of the households own at least two bicycles. Identify the population, the sample, and the individuals in the study. Objective: (1.1) Explain the process of statistics. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 12) 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 10 0 students and carefully recorded their parking times. Identify the population of interest to the university administration. A) the entire set of faculty, staff, and students that park at the university B) the students that park at the university between 9 and 10 AM on Wednesdays C) the parking times of the entire set of students that park at the university D) the parking times of the 10 0 students from whom the data were collected Objective: (1.1) Explain the process of statistics. 13) A manufacturer of cellular phones has decided that an assembly line is operating satisfactorily if less than 0.0 5 % of the phones produced per day are defective. To check the quality of a day's production, the company decides to randomly sample 6 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 0.0 5 % of the phones that are defective C) the 6 0 responses: defective or not defective D) the 6 0 phones sampled and tested Objective: (1.1) Explain the process of statistics. 14) A recent 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. Thirty - eight hundred Florida residents were surveyed. Which of the following is the population used in the study? A) all Florida residents B) the Florida residents who were willing to spend more tax dollars on protecting the beaches from environmental disasters C) all Florida residents who lived along the beaches D) the 3,800 Florida residents surveyed Objective: (1.1) Explain the process of statistics. 15) 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 22 0 students and carefully recorded their parking times. Identify the sample of interest to the university administration. A) parking time of a student B) parking times of the 22 0 students C) location of the parking spot D) type of car (import or domestic) Objective: (1.1) Explain the process of statistics. 2 2 / 4

16) The legal profession conducted a study to determine the percentage of cardiologists who had been sued for malpractice in the last ten years. The sample was randomly chosen from a national directory of doctors. Identify the individuals in the study. A) the responses: have been sued/have not been sued for malpractice in the last ten years B) the doctor's area of expertise (i.e., cardiology, pediatrics, etc.) C) all cardiologists in the directory D) each cardiologist selected from the directory Objective: (1.1) Explain the process of statistics. SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 17) Administrators at a large university want to know the average debt incurred by their graduates. Surveys were mailed to 21 0 graduating seniors asking them to report their total student loan debt. Identify the population, sample, and individuals in the study. Objective: (1.1) Explain the process of statistics. 18) A study was conducted to determine if listening to heavy metal music affects critical thinking. To test the claim, 124 subjects were randomly assigned to two groups. Both groups were administered a basic math skills exam. The first group took the exam while heavy metal music was piped into the exam room, while the second group took the exam in a silent room. The mean exam score for the first group was 84 , and the mean exam score for the second group was 97 . The researchers concluded that heavy metal music negatively affects critical thinking. Identify (a) the research objective, (b) the sample, (c) the descriptive statistics, and (d) the conclusions made in the study. Objective: (1.1) Explain the process of statistics. 19) A telephone poll asked 1,248 registered voters "Would you vote for the current vice president if he ran for president?" Of these 1,248 respondents, 40 % would vote for the current vice president if he ran for president. The administrators of the study concluded that 40 % of all registered voters would vote for the current vice president if he ran for president. Identify (a) the research objective, (b) the sample, (c) the descriptive statistics, and (d) the conclusions made in the study. Objective: (1.1) Explain the process of statistics. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 20) Which branch of statistics deals with the organization and summarization of collected information? A) Inferential statistics B) Computational statistics C) Survey design D) Descriptive statistics Objective: (1.1) Explain the process of statistics. Classify the variable as qualitative or quantitative. 21) the colors of book covers on a bookshelf A) qualitative B) quantitative Objective: (1.1) Distinguish between qualitative and quantitative variables. 22) the number of calls received at a company's help desk A) qualitative B) quantitative Objective: (1.1) Distinguish between qualitative and quantitative variables. 23) the number of seats in a school auditorium A) qualitative B) quantitative Objective: (1.1) Distinguish between qualitative and quantitative variables. 3 3 / 4

24) the numbers on the shirts of a boy's football team A) qualitative B) quantitative Objective: (1.1) Distinguish between qualitative and quantitative variables. 25) the bank account numbers of the students in a class A) quantitative B) qualitative Objective: (1.1) Distinguish between qualitative and quantitative variables. 26) the weights of cases loaded onto an airport conveyor belt A) quantitative B) qualitative Objective: (1.1) Distinguish between qualitative and quantitative variables. 27) the temperatures of cups of coffee served at a restaurant A) qualitative B) quantitative Objective: (1.1) Distinguish between qualitative and quantitative variables. 28) the native languages of students in an English class A) quantitative B) qualitative Objective: (1.1) Distinguish between qualitative and quantitative variables. Solve the problem. 29) A bicycle manufacturer produces four different bicycle models. Information is summarized in the table below: Model Series Number Weight Style Ascension A120 33 Mountain Road Runner B640 19 Road All Terrain C300 29 Hybrid Class Above D90 14 Racing Identify the variables and determine whether each variable is quantitative or qualitative. A) series number: quantitative; weight: qualitative; style: qualitative B) series number: quantitative; weight: quantitative; style: qualitative C) series number: qualitative; weight: qualitative; style: qualitative D) series number: qualitative; weight: quantitative; style: qualitative Objective: (1.1) Distinguish between qualitative and quantitative variables. 4

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