TEST BANK FOR STATISTICAL REASONING FOR EVERYDAY 5TH EDITION BY JEFF BENNETT, WILLIAM BRIGGS, MARIO TRIOLA | ALL CHAPTERS | COMPLETE LATEST GUIDE.

TEST BANK FOR STATISTICAL REASONING FOR EVERYDAY 5TH EDITION BY JEFF BENNETT, WILLIAM BRIGGS, MARIO TRIOLA | ALL CHAPTERS | COMPLETE LATEST GUIDE. Statistical Reasoning for Everyday Life Chapter 1 (Speaking of Statistics) Exam, form A MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. For problems 1 and 2, determine whether the evaluated group is a population or a sample. 1) The average (mean) age of all 63 Associate Professors at Cliffton University is 47 years. A) Population B) Sample 2) A researcher examines the property tax records of 84 property owners in one city and finds that 17% are behind in their tax payments. A) Population B) Sample For problems 3 and 4, determine whether the given value is a statistic or a parameter. 3) The average (mean) age of all 63 Associate Professors at Cliffton University is 47 years. A) Statistic B) Parameter 4) A researcher examines the property tax records of 84 property owners in one city and finds that 17% are behind in their tax payments. A) Statistic B) Parameter 5) Following the Republican National Convention, a poll of 600 voters in a central Illinois community showed that 57% expected the Republican ticket to win over the Democrat ticket no matter whom the Democrats chose for vice-president. The margin of error was 4 percentage points. There are 25,000 registered voters in the community. Which range of values is likely to contain the population parameter? A) 13,250 to 15,250 B) 24,400 to 25,600 C) 318 to 366 D) 53% to 61% 6) A poll of 488 citizens of Normal, Illinois, showed that 65% favored strict enforcement of speed limits with a margin of error of 4%. A second poll of 495 citizens of the same town showed that 34% favored strict enforcement of speed limits. Assuming that proper sampling techniques were used in both polls, one may conclude that A) the percent of the population that favors strict enforcement of speed limits is 49.5%  8%. B) the percent of the population that favors strict enforcement of speed limits is 49.5%  4%. C) one or both of the samples may have been unlikely samples from the population. D) the percent of the population that favors strict enforcement of speed limits is 65%  8%. 7) A poll of 700 attendees of the Taste of Chicago showed that 445 attendees, 65% of the sample, believed that the food was overpriced. It is estimated that 1,250,000 people attend the Taste. Although 65% plus or minus 5% of attendees believe that the food is overpriced, the Taste is a popular event. The raw data of the study is (are) A) 65% of the sample. B) 700 attendees, 455 attendees. C) 1,250,000 attendees, 700 attendees, 455 attendees. D) (60%, 70%) 8) A student wanted to know the favorite lunch at a large high school with a closed campus. What is the first step in conducting a statistical study to answer the question? A) Select a random sample of students. B) Precisely state the goal of the study. C) Select a random sample of students and teachers. D) Select a random sample of teachers. 2 Copyright © 2018 Pearson Education, Inc. For problems 9 and 10, determine whether the statement is based on census data or sample data. 9) The average (mean) age of all 63 Associate Professors at Cliffton University is 47 years. A) Census data B) Sample data 10) A researcher determines that 17% of 84 property owners in a large city are behind in their tax payments. A) Census data B) Sample data For problems 11 and 12, select the most representative sample of the population of interest. 11) A college student who does laundry infrequently wants to determine the effect of stain remover on what should be white clothes. A) Reports of two friends, one of whom was given stain remover. B) The reports of an internet chatroom on laundry techniques. C) Two loads of personal wash, one with, one without stain remover. D) Two loads of wash, one personal, one of a friend, the stain remover assigned by a coin flip. 12) The father of a junior high school student wants to determine the most popular book among junior high students. Select the sample with the least potential bias. A) A randomly selected group of 10 book sellers B) A randomly selected group of 30 junior high students C) A randomly selected group of 30 junior high students leaving the public library D) The group of 30 junior high students attending the birthday party of the researcher’s child For problems 13 and 14, identify the sampling technique that was used. 13) A sample consists of every 49th student from a group of 496 students. A) Systematic B) Cluster C) Convenience D) Random E) Stratified 14) To avoid working late, a quality-control analyst simply inspects the first 100 items produced in a day. A) Systematic B) Cluster C) Convenience D) Random E) Stratified For problems 15 and 16, determine whether the study is experimental or observational? 15) A marketing firm does a survey to find out how many people use a product. Of the 100 people contacted, 15 said they use the product. A) Observational B) Experimental 16) Two samples of fish are taken from a river upstream and downstream of a factory to measure the effect of pollution from the factory on the fish. A) Observational B) Experimental 3 Copyright © 2018 Pearson Education, Inc. 17) A nutritionist wants to conduct a study to validate the efficacy of an herb as an aid in weight loss. She randomly assigns half of a group of overweight people to a treatment group who are given the herb with instructions for its use and a planned diet for six weeks. The other half of the group is given parsley with the same instructions and same diet. A nurse at the nutrition center weighs each subject on Friday of each week. Select the potential source of confounding. A) The placebo effect B) Experimenter effect C) Method of assignment to treatment and control groups D) The study is essentially free of potential confounding. 18) Select the most appropriate type of study for the question: Which is the best fertilizer for Mr. Jimenez’s backyard grass? A) Experimental B) Experimental blinded C) Double-blind D) Observational 19) Which data provide the answer to the question: “How many times a week do students at Eureka College study more than three hours a day?” A) Of 100 students surveyed, 43 reported that they study at least three hours a day on Saturdays and Sundays. B) Of 100 students surveyed, 43 reported that they have studied at least three hours a day. C) Of 100 students surveyed, 43 reported that they studied at least three hours a day twice last week. D) Of 100 students surveyed, 43 reported that they intend to study at least three hours a day next week. 20) Determine which evaluation guideline applies best in questioning the results of the described study: A homeowner put a brand-name fertilizer/weed killer on half of his lawn and a generic fertilizer/weed killer on the other half. After three weeks, the generic side had 1 weed per square meter, the other side had 1.7 weeds per square meter. The generic side required two mowings in the 3 weeks, the brandname side one. The homeowner concluded that the generic was superior to the brand name. A) Consider possible confounding variables. B) Consider the sample. C) Consider the type of study. D) Consider the source. 4 Copyright © 2018 Pearson Education, Inc. Statistical Reasoning for Everyday Life Chapter 1 (Speaking of Statistics) Exam, form B MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. For problems 1 and 2, determine whether the evaluated group is a population or a sample. 1) A researcher determines that 42.7% of all downtown office buildings have ventilation problems. A) Population B) Sample 2) After taking the first exam, 15 students dropped the class. A) Population B) Sample For problems 3 and 4, determine whether the given value is a statistic or a parameter. 3) A researcher determines that 42.7% of all downtown office buildings have ventilation problems. A) Statistic B) Parameter 4) After taking the first exam, 15 students dropped the class. A) Statistic B) Parameter 5) One month before a recall election, a poll of 500 Wisconsin voters showed that 46% planned to vote for the Democratic challenger Tom Barrett and 45% planned to vote for Republican Governor Scott Walker. Undecided voters constituted another 9%. The margin of error was 5 percentage points. What conclusion can you draw from this poll? A) Barrett will win the election B) Walker can’t get over 50% of the votes C) The race is too close to call D) No one will win 6) In a survey of 80 high school football players who committed to play in the Division III CCIW conference, 64 said that they would work out in their high school weight rooms in the summer before college. The margin of error for the survey was 6%. A census of all CCIW football players (not just freshmen) showed that 59% worked out at their high schools. One can conclude that A) the subjects were less than forthcoming in their responses to the survey. B) the sample was not representative of the population. C) there must have been an error in the determination of the margin of error. D) the census results are consistent with the confidence interval of the study. 7) Data has been collected from a representative sample of a well-defined population to answer the question: “How much money does the average senior male at Normal Community High School have in his pockets at the end of the school day on Friday?” The next step in the study is to A) determine the margin of error. B) summarize the data with a sample statistic. C) use the collected data to make inferences about the population. D) summarize the data with a sample parameter.