Introduction to Statistics and Data Analysis
5th Edition
ISBN: 9781305115347
Author: Roxy Peck; Chris Olsen; Jay L. Devore
Publisher: Brooks Cole
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Textbook Question
Chapter 1.4, Problem 12E
Classify each of the following variables as either categorical or numerical. For those that are numerical, determine whether they are discrete or continuous.
- a. Number of students in a class of 35 who turn in a term paper before the due date
- b. Gender of the next baby born at a particular hospital
- c. Amount of fluid (in ounces) dispensed by a machine used to fill bottles with soda pop
- d. Thickness of the gelatin coating of a vitamin E capsule
- e. Birth order classification (only child, firstborn, middle child, lastborn) of a math major
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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 - Prob. 6ECh. 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 - Prob. 14ECh. 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 - Prob. 18ECh. 1.4 - The article Feasting on Protein (AARP Bulletin,...Ch. 1.4 - ● Box Office Mojo (www.boxofficcmojo.com) tracks...Ch. 1.4 - Prob. 21ECh. 1.4 - The following display is a graph similar to one...Ch. 1.4 - Prob. 23ECh. 1.4 - Prob. 24ECh. 1.4 - Prob. 25ECh. 1.4 - Prob. 26ECh. 1.4 - The article Fliers Trapped on Tarmac Push for...Ch. 1.4 - Prob. 28ECh. 1.4 - The article Where College Students Buy Textbooks...Ch. 1.4 - Prob. 30ECh. 1.4 - Prob. 31ECh. 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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- 2) Are the following variables discrete or continuous? a) A person's age: b) The number of cars served at a fast food drive-thru: c) The weight of an elephant:arrow_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_forwardIf f is continuous on [a, b], then the horizontal line y = k for every k between f (a) and f (b) intersects the graph of y = f (x) at least once.arrow_forward
- find the values of a and b that make f continuous eveywhere.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_forwardLet x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. x 3 7 15 38 75 y 40 35 30 28 18 (c) Use a calculator to verify that Σx = 138, Σx2=7352, Σy = 151, Σy2 = 4833, and Σxy = 3229. Compute r. (Round your answer to three decimal places.)r =arrow_forward
- The prices (in $) of Rawlston, Inc. stock ( y) over a period of 12 days, the number of shares (in 100s) of company's stocks sold ( x 1), and the volume of exchange (in millions) on the New York Stock Exchange ( x 2) are shown below. Day (y) (x1) (x2) 1 87.50 950 11.00 2 86.00 945 11.25 3 84.00 940 11.75 4 83.00 930 11.75 5 84.50 935 12.00 6 84.00 935 13.00 7 82.00 932 13.25 8 80.00 938 14.50 9 78.50 925 15.00 10 79.00 900 16.50 11 77.00 875 17.00 12 77.50 870 17.50 Excel was used to determine the least squares regression equation. Part of the computer output is shown below. ANOVA df SS MS F Significance F Regression 2 118.8474 59.4237 40.9216 0.0000 Residual 9 13.0692 1.4521 Total 11 131.9167 Coefficients Standard Error t Stat P-value Intercept…arrow_forwardFor A. choose between uniform or normal for B. choose between continuous or discretearrow_forwardFind the values of and that make continuouseverywhere.arrow_forward
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