Concept explainers
Four different beverages are sold at a fast-food restaurant: soft drinks, tea, coffee, and bottled water.
a. Explain why the type of beverage sold is an example of a categorical variable.
b. Explain why the type of beverage is an example of a nominal- scaled variable.
a.
Explain the reason for considering the type of beverage sold to be a categorical variable.
Explanation of Solution
According to the provided information, a particular fast-food restaurant sells four different types of beverages, which are soft drinks, tea, coffee and bottled water.
Categorical variables are ones that describe the qualities of the object of interest. Here, the type of beverages sold is categorized into 4 categories that describe the quality and type of beverage. So, the variable is a categorical variable.
b.
Explain why the type of beverages is a nominal scaled variable.
Explanation of Solution
Nominal scale of measurement is used for labelling a categorical variable, which is, more specifically, one that is not of a numerical nature and does not involve any order or ranking.
Here, the type of beverages is a categorical variable, where each type of beverage represents a different category that cannot be ordered in a specific order. Therefore, the variable is an example of a nominal-scaled variable.
Want to see more full solutions like this?
Chapter 1 Solutions
Basic Business Statistics, Student Value Edition
Additional Math Textbook Solutions
Essential Statistics
Business Analytics
Introductory Statistics
Developmental Mathematics (9th Edition)
Elementary Statistics: A Step By Step Approach
Applied Statistics in Business and Economics
- Cholesterol Cholesterol in human blood is necessary, but too much can lead to health problems. There are three main types of cholesterol: HDL (high-density lipoproteins), LDL (low-density lipoproteins), and VLDL (very low-density lipoproteins). HDL is considered “good” cholesterol; LDL and VLDL are considered “bad” cholesterol. A standard fasting cholesterol blood test measures total cholesterol, HDL cholesterol, and triglycerides. These numbers are used to estimate LDL and VLDL, which are difficult to measure directly. Your doctor recommends that your combined LDL/VLDL cholesterol level be less than 130 milligrams per deciliter, your HDL cholesterol level be at least 60 milligrams per deciliter, and your total cholesterol level be no more than 200 milligrams per deciliter. (a) Write a system of linear inequalities for the recommended cholesterol levels. Let x represent the HDL cholesterol level, and let y represent the combined LDL VLDL cholesterol level. (b) Graph the system of inequalities from part (a). Label any vertices of the solution region. (c) Is the following set of cholesterol levels within the recommendations? Explain. LDL/VLDL: 120 milligrams per deciliter HDL: 90 milligrams per deciliter Total: 210 milligrams per deciliter (d) Give an example of cholesterol levels in which the LDL/VLDL cholesterol level is too high but the HDL cholesterol level is acceptable. (e) Another recommendation is that the ratio of total cholesterol to HDL cholesterol be less than 4 (that is, less than 4 to 1). Identify a point in the solution region from part (b) that meets this recommendation, and explain why it meets the recommendation.arrow_forwardSouthwest Airlines had 81.1 million domestic boardings in a recent year, followed by Delta Airlines with 79.4 million, American Airlines with 72.6 million, United Airlines with 56.3 million, Northwest Airlines with 43.3 million, US Airways with 37.8 million, and Continental Airlines with 31.5 million, according to T-100 Domestic Market. Construct a pie chart to depict this information. List down the variable of the above data. Describe whether each variable are qualitative or quantitative data? Explain your answer. Describe the level of measurement for the variables. Explain your answer.arrow_forwardThe quantity of dissolved oxygen is a measure of water pollutants in rivers. Water samples were taken at three different locations in a river. You want to investigate whether the water pollution varied between locations, the independent variable in this study is: quantity of dissolved oxygen. В. А. water samples. С. river locations. D. polluted river. A В Answerarrow_forward
- Consider the following variables: A. Whether you own a television set. B. Your status as either a full-time or a part-time student. C. The number of students on campus. D. The price of your most recent haircut. E. Women’s Tennis Association singles rankings for female tennis players: 1= Dinara, 2= Serena, 3= Venus and 4= Elena. Which one of the following statements is/are nominal? Select one: 1.Only A. 2.A and B. 3.A, B, and E. 4.A, D, and E. 5.B, C, and E (Don't Hand writing in solution) .arrow_forwardPlease complete the following question. Make sure you are responding to all parts of the question. The number of awards earned by students at one high school is recorded. Predictors of the number of awards earned include the type of program in which the student was enrolled (e.g., vocational, general or academic) and the score on their final exam in math. Variables Participant number (ID) Number of awards Program type (vocational - 1; general - 2; academic - 3 Math Score id num_awards prog math 45 1 3 41 108 1 1 41 15 1 3 44 67 1 3 42 153 1 3 40 51 1 1 42 164 1 3 46 133 1 3 40 2 1 3 33 53 1 3 46 1 1 3 40 128 0 2 38 16 1 3 44 106 1 3 37 89 1 3 40 134 1 1 39 19 1 1 43 145 0 3 38 11 1 2 45 117 0 3 39 109 1 1 42 12 1 3 45 37 1 3 40 69 0 3 40 43 1 2 43…arrow_forwardIn a study of automobile prices, the variables included in the equation were mileage, age, car model. The indicator variable is: Group of answer choices Prices; Mileage. Age. Car Model.arrow_forward
- Here is a chart showing how many people are non-smokers, occasional smokers, and heavy smokers by the categories of drinking behavior (non-drinkers, occasional drinkers, and heavy drinkers). Based on this data, which of the statements below are true? Incidence of Smoking by Category of Drinkers Select one or more: 2118 2061 a. A higher proportion of heavy drinkers are heavy smokers, as compared to the proportion of non-drinkers that are heavy smokers 1067 b. There are more heavy smokers who are heavy drinkers than there are heavy smokers who are 899 733 733 occasional drinkers 552 435 163 163 c. Non-drinkers are far more likely to be non-smokers than to be occasional smokers or heavy NON DRINKER HEAVY DRINKER OCCASIONAL DRINKER smokers Occasional Smoker Non Smoker Heavy Smoker d. From this chart, you can conclude that there is a relationship between drinking and smoking, but you cannot say whether one causes the other In this boxplot the numeric variable box office gross (sales) of…arrow_forwardA survey of college students collected information on several variables: distance from home, age, major, gender, and class. The variable “class” is: categorical quantitative neither quantitative nor categoricalarrow_forwardTwo types of categorical variables are a. Nominal and Ordinal b. Descriptive and Numerical c. Categorical and Descriptive d. Categorical and Inferentialarrow_forward
- Hákon conducts an experiment where he counts the number of passes between teammates before each scored coal in the English Premier league in soccer. How should Hákons variable be recorded? Please explain 1. As a continuous numeric variable. 2. As a categorical variable. 3. As a continuous categorical variable. 4. As a discrete continous variable. 5. R-command:arrow_forwardResidents in a city are charged for water usage every three months. The water bill is computed from a common fee, along with the amount of water the customers use. The last water bills for 40 residents from two different neighborhoods are displayed in the histograms. Which statement correctly compares the water bills for the two neighborhoods? Overall, water bills on Pine Road are less than those on Front Street. Overall, water bills on Pine Road are higher than those on Front Street. The range of water bills on Pine Road is lower than the range of water bills on Front Street. The range of water bills on Pine Road is higher than the range of water bills on Front Street.arrow_forwardThe Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains (Consumer Reports website, February 11, 2009). Assume the following data are representative of the results reported. The variable type indicates whether the restaurant is an Italian restaurant or a seafood/steakhouse. Price indicates the average amount paid per person for dinner and drinks, minus the tip. Score reflects diners’ overall satisfaction, with higher values indicating greater overall satisfaction. A score of 80 can be interpreted as very satisfied. Restaurant Type Price ($) Score Bertucci's Italian 16 77 Black Angus Steakhouse Seafood/Steakhouse 24 79 Bonefish Grill Seafood/Steakhouse 26 85 Bravo! Cucina Italiana Italian 18 84 Buca di Beppo Italian 17 81 Bugaboo Creek Steak House Seafood/Steakhouse 18 77 Carrabba's Italian Grill Italian 23 86 Charlie Brown's…arrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt
- Elementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice University