Statistics Test Bank

Chapter 03 - Describing Data: Numerical Measures Multiple Choice Questions Chapter 03 Describing Data: Numerical Measures 1. i. A value that is typical or representative of the data is referred to as a measure of central tendency. ii. The arithmetic mean is the sum of the observations divided by the total number of observations iii. The value of the observation in the center after they have been arranged in numerical order is called the weighted mean A. (i), (ii), and (iii) are all correct...

Basic Statistics for Business and Economics, 9e (Lind) Chapter 3 Describing Data: Numerical Measures 1) A value that "attempts to pinpoint the center of a distribution of data" is referred to as a measure of location. Answer: TRUE Explanation: The purpose of a measure of location is to pinpoint the center of a distribution of data. An average is a measure of location that shows the central value of the data. Four measures of location are discussed in the text: the arithmetic mean, the media...

Chapter 1: The Role of Statistics Name ___________________________ 1. Briefly describe how populations and samples differ. 2. In a psychological study of distance perception, introductory psychology class volunteers were given 5, 10, or 15 extra credit points depending on their level of participation in the experiment. They walked along paths laid out along hallways in the psychology building, and were asked to judge the distance they had walked. Each path distance was between 100 and 200 fee...

Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Respond to the question by using complete sentences. 1) Let n be the number (in thousands) of fans who attend a baseball game. What does n = 35 mean in 1) this situation? A) 35 fans attended the baseball game. B) 35,000 fans attended the baseball game. C) There are 35,000 seats at the baseball field. D) There are 35 seats at the baseball field....

CHAPTER 3 MEASUREMENTS, MISTAKES, AND MISUNDERSTANDINGS SECTION 3.1 SIMPLE MEASURES DON’T EXIST FREE RESPONSE QUESTIONS 1. Explain why even the simplest kind of measurement, such as finding your height, still presents complicated issues. ANSWER: ANY REASONABLE ANSWER OK. EXAMPLES: THE ACCURACY OF YOUR MEASUREMENT DEPENDS ON YOUR MEASUREMENT TOOL; HOW TALL YOU STAND WHEN YOU MEASURE; WHETHER OR NOT YOU WEAR SHOES, ETC. 2. Describe one of the issues that you would need to think about when...

CHAPTER 3 Vive La Différence: Understanding Variability Part I. Multiple-Choice Questions (20 items) 1. The average and which of the following can be used to describe the characteristics of a distribution and show how distributions differ from one another? a. mode b. median c. variability d. sum Ans: c 2. Variability is a measure of how much each score in a group of scores differs from the what? a. mode b. median c. variability d. mean Ans: d 3. The three meas...

Chapter 1: The Purpose of Statistics in the Criminological Sciences Test Bank 1. Which type of research seeks to identify cases and effects of social phenomena, to predict how dependent variable will change or vary in response to variation in the independent variable? a. Descriptive *b. Explanatory c. Evaluation d. Case Study @ Answer Location: The Role of Statistical Methods in Criminology and Criminal Justice: Explanatory Research; Cognitive Domain: Comprehension; Question Type: MC ...

1. What is the purpose of measures of central tendency? a. to find the most typical value of a distribution of scores b. to find the most surprising value of a distribution of scores c. to find the most significant value of a distribution of scores d. to find the most important value of a distribution of scores ANSWER: a 2. Which of these statements describes the three commonly used measures of central tendency (mode, median, and mean)? a. They define “typical” or...

Chapter 3 Test Questions 1. Which of the following is NOT true of the mean? a. it is appropriate for normal and skewed distributions b. it is the same as the arithmetic average c. it belongs in the category of parameters of central tendency d. it is considered an unbiased estimator 2. The “unbiased” aspect of an unbiased estimator indicates that a. it holds for all ethnic groups b. it underestimates the population value with the same tendency as it overestimates the populat...

Chapter 3: Statistical Significance Testing Multiple Choice 1. Of the following, which is not an issue in null hypothesis significance testing logic: a. disconfirmatory evidence b. convenience sampling c. the likelihood the null hypothesis is correct d. probability of obtaining a value larger than observed Ans: c 2. Failing to reject the null hypothesis when it is true is: a. a Type I error b. a Type II error c. a correct decision d. an incorrect decision Ans: c ...