Introduction To Statistics And Data Analysis
6th Edition
ISBN: 9781337793612
Author: PECK, Roxy.
Publisher: Cengage Learning,
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Chapter 1.4, Problem 13E
Classify each of the following variables as either categorical or numerical. For those that are numerical, determine whether they are discrete or continuous.
- a. Brand of computer purchased by a customer
- b. State of birth for someone born in the United States
- c. Price of a textbook
- d. Concentration of a contaminant (micrograms per cubic centimeter) in a water sample
- e. Zip code (Think carefully about this one.)
- f. Actual weight of coffee in a 1-pound can, labeled as containing 1 pound
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Chapter 1 Solutions
Introduction To Statistics And Data Analysis
Ch. 1.3 - Give brief definitions of the terms descriptive...Ch. 1.3 - Give brief definitions of the terms population and...Ch. 1.3 - The following conclusion from a study appeared in...Ch. 1.3 - Based on a study of 2 121 children between the...Ch. 1.3 - The student senate at a university with 15,000...Ch. 1.3 - The National Retail Federation used data from a...Ch. 1.3 - The supervisors of a rural county are interested...Ch. 1.3 - A consumer group conducts crash tests of new model...Ch. 1.3 - A building contractor has a chance to buy an odd...Ch. 1.3 - The article Brain Shunt Tested to Treat Alzheimers...
Ch. 1.3 - In a study of whether taking a garlic supplement...Ch. 1.4 - Classify each of the following variables as either...Ch. 1.4 - Classify each of the following variables as either...Ch. 1.4 - For the following numerical variables, state...Ch. 1.4 - For the following numerical variables, state...Ch. 1.4 - For each of the following situations, give a set...Ch. 1.4 - In a survey of 100 people who had recently...Ch. 1.4 - The Gallup report More Americans Say Real Estate...Ch. 1.4 - An article in the New Times San Luis Obispo...Ch. 1.4 - Box Office Mojo (boxofficemojo.com) tracks movie...Ch. 1.4 - The report With Their Whole Lives Ahead of Them...Ch. 1.4 - The following display is a graph similar to one...Ch. 1.4 - The accompanying table gives the total number...Ch. 1.4 - Heal the Bay is an environmental organization that...Ch. 1.4 - The report referenced in the previous exercise...Ch. 1.4 - The U.S. Department of Health and Human Services...Ch. 1.4 - Example 1.5 gave the accompanying data on violent...Ch. 1.4 - The article Fliers Trapped on Tarmac Push for...Ch. 1.4 - The report Trends m Community Colleges...Ch. 1.4 - The article Where College Students Buy Textbooks...Ch. 1.4 - Prob. 31ECh. 1.4 - In the United States, movies are rated by the...Ch. 1 - The report Testing the Waters 2009 (nrdc.org)...Ch. 1 - The U.S. Department of Education reported that 14%...Ch. 1 - The Computer Assisted Assessment Center at the...Ch. 1 - The article Just How Safe Is That Jet? (USA TODAY,...Ch. 1 - Each year, U.S. News and World Report publishes a...Ch. 1 - Many adolescent boys aspire to be professional...
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- Classify each of the following qualitative variables as ordinal or nominative.arrow_forwardWhich of the following is most likely a continuous numerical variable ? A. the number of reams of paper ordered B. the population of Egypt in 2005 C. the number of gallons of paint purchased D. the number of miles of interstate highwaysarrow_forwardFind the mean and standard deviation for each uniform continuous model U(1, 13) U(70, 200) U(3, 92)arrow_forward
- Indicate whether each of the following quality characteristics is a continuous, binary, or count variable. a) The number of flaws in a plate glass window. b) The length of time taken to perform a final inspection of a finished product. c) Whether the breaking strength of a bolt meets a specification. d) The diameter of a rivet head.arrow_forwardFor each of the following variables, indicate whether it is qualitative or quantitative. For quantitative variables, further categorize them into either discrete or continuous type.e. Heightf. Blood typeg. Per capita incomeh. Household sizei. Mid-upper arm circumference (in cm)arrow_forwardClassify the following variables according to whether they are nominal, ordinal, interval, or ratio data. Brand of soft drinks Birth order of children in a family Places in a beauty contest Scores in an aptitude test Speed of cars in kilometers per hour Varieties of com Scores in an oratorical contest Weight of children Grades in English Height of studentsarrow_forward
- ) For the following determine if it quantitative or qualitative. If it is quantitative, determinewhether it is continuous or discrete. i. The address of all clients at a salon.ii. The weight of meat sold by a butcheriii. The number of children who graduate from a collegeiv. The cost of a new television at courtsarrow_forwardb) Estimate the degrees of freedom within and between mileage at each type of gasoline used.arrow_forward1.4. For each of the following items from a public-opinion survey, indicate the level of measurement and whether the variable will be discrete or continuous. (HINT: Remember that only interval-ratio–level variables can be continuous.) In what country were you born? What is your age? How many years of school have you completed? What is your occupation? If you were asked to use one of these four names for your social class, in which would you say you belonged? UpperMiddle WorkingLower What is your grade-point average? What is your major? The only way to deal with the drug problem is to legalize all drugs. Strongly disagree Disagree Undecided Agree Strongly agree What is your astrological sign? How many brothers and sisters do you have?arrow_forward
- For each of the following, identify the type of the variables. Indicate if it is quantitative or qualitative. If it is quantitative, indicate whether the variable is continuous or discrete. If it is qualitative, where it is ordinal or nominal. There should be two answers for every variable. Strength of an opinion (1-10 scale, strongly disagree to strongly agree) Color of hair (brown, blonde, black, gray) Temperature Age Sex Race/ethnicityarrow_forwardDetermine whether the following examples are discrete or continuous data sets. Write "DISCRETE" for discrete and "CONTINUOUS" for continuous. (without quotations - use for instance copy and paste to avoid typos) (a) The length of time needed for a student to complete a homework assignment.answer: (b) The distance traveled by a city bus each day.answer: (c) The number of customers waiting in line at the grocery store.answer: (d) The number of errors found on a student's research paper.answer:arrow_forwardDetermine whether each of the following variables would best be modeled as continuous or discrete 6.3 a. The height of a person in inches b. The weight of a person in poundsarrow_forward
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