Explanation Calculation: Steps to obtain the frequency distribution of service times: Step 1: The lowest value in the data set is the minimum service times is 76 seconds. The highest value in the data set is the maximum service times is 259 seconds. Step 2: Calculate the number of classes using the formula, Number of classes ≈ Maximum data value − Minimum data value Class width Substitute “Class width” as 40, “Maximum data value” as 259 and “Minimum data value” as 76. Number of classes ≈ 259 − 76 40 = 183 40 = 4.575 ≈ 5 Step 3: Add the class width of 40 to the starting value of 70 to obtain the second lower class limit of 110. Continue to add the class width of 40 until five lower class limits are found. Thus, the lower class limits are 70, 110, 150, 190 and 230. Step 4: List the lower class limits vertically, to identify the corresponding upper class limits as shown in Table (1). Service times (sec) 70 – 110 – 150 – 190 – 230 – Table (1) Thus, the upper class limits are 109, 149, 189, 229 and 269. Step 5: Enter a tally mark for each data value (service times) in the appropriate class. Then, add the tally marks to obtain the frequency for each class interval shown in Table 2. Service times (sec) Tally mark Frequency 70 – 109

Elementary Statistics Using The Ti-83/84 Plus Calculator, Books A La Carte Edition (5th Edition)

5th Edition

ISBN: 9780134688886

Author: Mario F. Triola

Publisher: PEARSON

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Chapter 2.1, Problem 13BSC

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Chapter 2 Solutions

Elementary Statistics Using The Ti-83/84 Plus Calculator, Books A La Carte Edition (5th Edition)

Ch. 2.1 - Prob. 1BSC Ch. 2.1 - Prob. 2BSC Ch. 2.1 - Prob. 3BSC Ch. 2.1 - Prob. 4BSC Ch. 2.1 - Prob. 5BSC Ch. 2.1 - Prob. 6BSC Ch. 2.1 - Prob. 7BSC Ch. 2.1 - Prob. 8BSC Ch. 2.1 - Prob. 9BSC Ch. 2.1 - Prob. 10BSC

Ch. 2.1 - Prob. 11BSC Ch. 2.1 - Prob. 12BSC Ch. 2.1 - Prob. 13BSC Ch. 2.1 - Prob. 14BSC Ch. 2.1 - Prob. 15BSC Ch. 2.1 - Constructing Frequency Distributions. In Exercises...Ch. 2.1 - Constructing Frequency Distributions. In Exercises...Ch. 2.1 - Prob. 18BSC Ch. 2.1 - Prob. 19BSC Ch. 2.1 - Relative Frequencies for Comparisons. In Exercises...Ch. 2.1 - Prob. 21BSC Ch. 2.1 - Prob. 22BSC Ch. 2.1 - Prob. 23BSC Ch. 2.1 - Prob. 24BSC Ch. 2.1 - Large Data Sets. Exercises 2528 involve large sets...Ch. 2.1 - Prob. 26BSC Ch. 2.1 - Prob. 27BSC Ch. 2.1 - Prob. 28BSC Ch. 2.1 - Prob. 29BB Ch. 2.2 - Prob. 1BSC Ch. 2.2 - Prob. 2BSC Ch. 2.2 - Blood Platelet Counts Listed below are blood...Ch. 2.2 - Prob. 4BSC Ch. 2.2 - Interpreting a Histogram. In Exercises 5-8, answer...Ch. 2.2 - Prob. 6BSC Ch. 2.2 - Prob. 7BSC Ch. 2.2 - Prob. 8BSC Ch. 2.2 - Prob. 9BSC Ch. 2.2 - Constructing Histograms. In Exercises 916,...Ch. 2.2 - Constructing Histograms. In Exercises 916,...Ch. 2.2 - Constructing Histograms. In Exercises 916,...Ch. 2.2 - Prob. 13BSC Ch. 2.2 - Prob. 14BSC Ch. 2.2 - Prob. 15BSC Ch. 2.2 - Prob. 16BSC Ch. 2.2 - Prob. 17BB Ch. 2.2 - Prob. 18BB Ch. 2.3 - Prob. 1BSC Ch. 2.3 - Prob. 2BSC Ch. 2.3 - Prob. 3BSC Ch. 2.3 - Prob. 4BSC Ch. 2.3 - Prob. 9BSC Ch. 2.3 - Prob. 10BSC Ch. 2.3 - Frequency Polygon. In Exercises 15 and 16,...Ch. 2.3 - Frequency Polygon. In Exercises 15 and 16,...Ch. 2.3 - Prob. 17BSC Ch. 2.3 - Deceptive Graphs. In Exercises 17-20, identify how...Ch. 2.3 - Prob. 19BSC Ch. 2.3 - Deceptive Graphs. In Exercises 17-20, identify how...Ch. 2.4 - Linear Correlation In this section we use r to...Ch. 2.4 - Prob. 2BSC Ch. 2.4 - Prob. 3BSC Ch. 2.4 - Prob. 4BSC Ch. 2.4 - Scatterplot. In Exercises 58, use the sample data...Ch. 2.4 - Prob. 6BSC Ch. 2.4 - Prob. 7BSC Ch. 2.4 - Prob. 8BSC Ch. 2.4 - Prob. 9BSC Ch. 2.4 - Linear Correlation Coefficient In Exercises 9-12,...Ch. 2.4 - Prob. 11BSC Ch. 2.4 - Prob. 12BSC Ch. 2.4 - Prob. 13BB Ch. 2.4 - P-Values In Exercises 13-16, write a statement...Ch. 2.4 - Prob. 15BB Ch. 2.4 - Prob. 16BB Ch. 2 - Cookies Refer to the accompanying frequency...Ch. 2 - Cookies Using the same frequency distribution from...Ch. 2 - Prob. 3CQQ Ch. 2 - Cookies A stemplot of the same cookies summarized...Ch. 2 - Computers As a quality control manager at Texas...Ch. 2 - Prob. 6CQQ Ch. 2 - Prob. 7CQQ Ch. 2 - Prob. 8CQQ Ch. 2 - Prob. 9CQQ Ch. 2 - Prob. 10CQQ Ch. 2 - Frequency Distribution of Body Temperatures...Ch. 2 - Prob. 2RE Ch. 2 - Prob. 5RE Ch. 2 - Prob. 6RE Ch. 2 - Prob. 1CRE Ch. 2 - In Exercises 1-6, refer to the data below, which...Ch. 2 - Prob. 3CRE Ch. 2 - Prob. 4CRE Ch. 2 - Prob. 6CRE Ch. 2 - Prob. 1TPP Ch. 2 - Fast Food Restaurant Drive-Through Service Times:...Ch. 2 - Prob. 2FDD Ch. 2 - Fast Food Restaurant Drive-Through Service Times:...Ch. 2 - Prob. 4FDD Ch. 2 - Prob. 5FDD

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