Statistics Expert Answers / Study Resources

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 27) The owners of an industrial plant want to determine which of two types of fuel (gas or electricity) will produce more useful energy at a lower cost. The cost is measured by plant investment per.

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 82) In a study of feeding behavior, zoologists recorded the number of grunts of a warthog feeding by a lake in the 15 minute period following the addition of food. The data showing the number.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following should be planned at the beginning of a project rather than at the end? A) Finding sources B) Research assistants C) Data analysis D) None of the above 2) Which of the following, when.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) Benign research measures are nonreactive methods of gathering data, that is, means of obtaining information in which subjects are not aware of being studied. 2) Unobtrusive measures are ways of studying groups so that they remain.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) A variable list keyed to questionnaire items enables the identification and examination of questionnaire content to ensure proper coverage, balance, and non-duplication of items. 2) Data management is concerned with the process by which the raw.

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 124) Referring to Scenario 12-11, what is the standard error of estimate? 125) Referring to Scenario 12-11, what is the standard deviation around the regression line? MULTIPLE CHOICE. Choose the one alternative that best completes the statement.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) Surveys have often been misunderstood by some researchers who have been socialized in the experimental tradition. 2) Analytic survey research may use statistical probability theory to assess sampling error. 3) Descriptive survey research attempts to explore questions.

Answer the question True or False. Solve the problem. 153) Transportation officials tell us that 60% of drivers wear seat belts while driving. Find the probability that more than 562 drivers in a sample of 900 drivers wear seat belts. A) 0.0630 B) 0.9370 C) 0.4 D) 0.6 155) Transportation officials tell us that 60% of.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is the study of the causes and consequences of government behavior (what governments do or do not do)? A) Government oversight B) Policy analysis C) Civil analysis D) Civil oversight 2) Which of the.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Use the following table to answer the question. The following table summarizes the outcomes of a study that researchers carried out to determine if females expressed a greater fear of flying than males.   Men Women Expressed a fear of.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 74) A marketing research company is estimating which of two soft drinks college students prefer. A random sample of 168 college students produced the following confidence interval for the proportion of college students who prefer drink.

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 36) How much money does the average professional football fan spend on food at a single football game? That question was posed to 42 randomly selected football fans. The sample results provided a sample mean.

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 75) A revenue department is under orders to reduce the time small business owners spend filling out pension form ABC-5500. Previously the average time spent on the form was 70 hours. In order to test.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is a classification of statistics? A) Descriptive statistics B) Inferential statistics C) Absolute statistics D) A and B only 2) Which of the following is intended to summarize or describe data or show relationships.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is a type of interview? A) Structured B) Unstructured C) Depth D) All of the above 2) Which of the following consists of check-off responses to questions that are factual and easily fit.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 70) A small study was conducted on a new procedure for treating atrial fibrillation. The study involved a new way to perform ablation surgery. One method currently being used had a success rate of.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) Since social and behavioral research rarely puts subjects at risk, ethics is only of nominal concern. 2) The Lucifer Effect is a term coined by Zimbardo to refer to a transformation of human character that causes.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 62) According to a recent study, 1 in every 7 women has been a victim of domestic abuse at some point in her life. Suppose we have randomly and independently sampled twenty-five women and.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 4) A survey of high school teenagers reported that 79% of those sampled are interested in pursuing a college education. Does this statement describe descriptive or inferential statistics? A) Inferential statistics B) Descriptive statistics 6) From past figures,.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) Hirschi and Stark's "Hellfire and Delinquency" found a very weak relationship between church attendance and non-delinquency. 2) In "The Natural History of Nonsense," Evans outlines numerous examples of commonsense-nonsense issues that have greatly hindered human progress. 3).

The roads in a particular state are in very poor condition, but the state claims that it does not have enough money to repair the roads. A proposal is on the ballot to raise the sales tax in the state from 6% to 7% to pay for repairing the roads..

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is one of the major types of unobtrusive methods? A) Complex analysis B) Trace research C) Archival, existing data, and autobiographies D) None of the above 2) Which of the following comprises not only.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) Evaluation research analysis is the "study of whatever governments choose to do or not to do," or "the description and explanation of the causes and consequences of government behavior." 2) Policy analysis is an applied branch.

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 58) Recently, many states have been considering legalizing the use of marijuana. A survey was taken in 2014 where adults in one state were asked if they favored legalizing the use of marijuana. The following.

Use the following table to answer the question. The following table summarizes the outcomes of a study that researchers carried out to determine if females expressed a greater fear of heights than males.   Men Women Expressed a fear of heights 68 109 Did not express a fear of heights 94 89 4) How many categorical variables are summarized in.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Use the following information to answer the question. Lambda olive oil is touted as the "World's most expensive olive oil." A twelve ounce bottle typically costs fifty dollars or more. In a blind taste test, a.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 13) A consumer protection agency is comparing the work of two electrical contractors. The agency plans to inspect residences in which each of these contractors has done the wiring in order to estimate the difference in.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) Nominal level variables represent the simplest level of measurement. 2) Internal level variables contain all the properties of nominal variables, but they also enable the placement of objects into ranks, that is, highest to lowest. 3) Ordinal.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) The three basic forms of interviews are structured, unstructured and depth. 2) Structured interviews provide open-ended response to questions. 3) Unstructured interviews consist of check-off responses to questions that are factual and easily fit an expected pattern. 4).

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Alternatives to the experiment as data-gathering strategies include which of the following? A) Case studies B) Social surveys C) Participant observations D) All of the above 2) Which of the following is the annual FBI publication of official.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 6) What is zα/2 when α = 0.01? A) 2.575 B) 1.96 C) 2.33 D) 1.645 7) What is the confidence level of the following confidence interval for μ? overbar(x) ± 0.99((σ/√(n))) A) 99% B) 90% C) 80% D) 67% 8) The registrar's office at.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) Some researchers feel that social science and criminal justice research have been over-dependent on the artificial elements of questionnaires, interviews, and experimental settings. 2) Critics of quantitative research suggest that little relationship exists between attitude and.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following refers to levels on which variables may be measured? A) Interval B) Nominal C) Ordinal D) All of the above 2) Which of the following represent the simplest level of measurement? A) Ordinal level.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) The mean is the simplest measure of central tendency and is simply the most frequently occurring score. 2) The median (or midpoint) is a measure of central tendency that is applicable to ordinal (ranked) data. 3) The.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following do critics of quantitative research argue that there is little relationship between? A) Attitude and behavior B) Approach and outlook C) Social science and criminal justice D) Research and data 2) Which of the.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 29) Probabilities of different types of vehicle-to-vehicle accidents are shown below: Accident        Probability Car to Car          0.52 Car to Truck       0.17 Truck to Truck      0.31 Find the probability that an accident involves a car. A) 0.52 B) 0.69 C) 0.31 D) 0.17 30) A hospital reports.

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 88) An engineer collects the following data showing the speed and miles per gallon of a 4-door sedan.   Speed, s Miles per Gallon, M 30 17 35 21 40 24 40 25 45 29 50 29 55 33 60 30 65 25   a) Draw a scatter diagram of the data. What type of relation appears to.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 40) A sociologist recently conducted a survey of senior citizens who have net worths too high to qualify for Medicaid but have no private health insurance. The ages of the 25 uninsured senior citizens.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) The classical experimental design, which serves as a prototype for our discussion of all other research designs, contains three elements; equivalence, pretests and posttests, and experimental and control groups. 2) Experimental designs (sometimes called true experimental.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is another term for invalidity, and sources of potential error or invalidity are ever present, even in some of the best research? A) Mistake B) Error C) Gaffe D) Fault 2) Which of.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is the plan or blueprint for a study and includes the who, what, where, when, why, and how of an investigation? A) Spurious B) Research design C) Casualty D) None of the.

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 121) The rate of return for an investment can be described by a normal distribution with mean 36% and standard deviation 3%. What is the probability that the rate of return for the investment will.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is considered an excellent tool for gathering data? A) Historical research B) Survey research C) Scientific research D) None of the above 2) Which of the following may use statistical probability theory to assess.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following combine rational theoretical explanation with the scientific method? A) Criminology B) Research C) Science D) None of the above 2) Which of the following refers to the repetition of experiments or studies utilizing.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 1) A revenue department is under orders to reduce the time small business owners spend filling out pension form ABC-5500. Previously the average time spent on the form was 6.3 hours. In order to.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) Error is another term for invalidity, and sources of potential error or invalidity are ever present, even in some of the best research. 2) Reliability asks, "Does my measuring instrument in fact measure what it claims.

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) The National Incident-Based Reporting System (NIBRS) has traditionally been the most widely cited on crime in the United States. 2) The UCR is divided into Part 1 and Part 2 crimes. 3) The property crime index includes.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 36) How many tissues should a package of tissues contain? Researchers have determined that a person uses an average of 45 tissues during a cold. Suppose a random sample of 2500 people yielded the.

The roads in a particular state are in very poor condition, but the state claims that it does not have enough money to repair the roads. A proposal is on the ballot to raise the sales tax in the state from 6% to 7% to pay for repairing the roads..

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is an example of a social science study that has been linked to ethical concerns? A) Simulated Prison Experiment B) Tearoom Trade C) Obedience to Authority D) All of the above 2) Which of.