Statistical Reasoning for Everyday Life, Books a la Carte Edition, Plus NEW MyLab Statistics with Pearson eText -- Access Card Package (5th Edition)
5th Edition
ISBN: 9780134668390
Author: Jeffrey O. Bennett, William L. Briggs, Mario F. Triola
Publisher: PEARSON
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Textbook Question
Chapter 2.4, Problem 24E
Pizza Cost and Subway Fare. The “pizza connection” refers to the observation that in New York City, the cost of a slice of pizza is always about the same as the subway fare. In Exercises 21–24, use the CPI values from Table 2.2 and the data in the following table.
24. Subway Fare in 1990. Using the CPI values from the above table and Table 2.2, determine what the subway fare should have cost in 1990 if it cost $2.75 in 2015 and prices had risen with the CPI. What does this tell you about how actual subway fares changed compared to the CPI?
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Several states have argued that the 65-mph speed limit has no justification and have refused to enforce it. The federal Department of Transportation (DOT) believes that the 65-mph limit saves lives. To illustrate its contention, the department regressed the number of traffic fatalities (Y) last year in a state on the state’s population (X1), the number of days of snow cover (X2), and the average speed of all cars (X3). The results are shown below.
Table 10: Model Summary
Model
R
R Square
Adjusted R Square
Std. Error of the Estimate
1
.821 a
.780
.613
3.258
a. Predictors: (Constant), population, days of snow, average speed
Table 11: Coefficients
Coefficientsa
Model
Unstandardized Coefficients
Standardized Coefficients
t
Sig.
B
Std. Error
Beta
1
(Constant)
1.4
2.957
.473
.584
Population
.00029
.00003
.0034
9.667
.000
Days of Snow
2.4
.62
.759
3.871
.000
Average Speed
10.3
1.1…
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Part d: Determine whether the value from the model is larger or smaller than the value in the table.
Chapter 2 Solutions
Statistical Reasoning for Everyday Life, Books a la Carte Edition, Plus NEW MyLab Statistics with Pearson eText -- Access Card Package (5th Edition)
Ch. 2.1 - Qualitative versus Quantitative. What is the...Ch. 2.1 - Discrete versus Continuous. Distinguish between...Ch. 2.1 - Measurement Levels. What do we mean by data at the...Ch. 2.1 - Interval versus Ratio. Explain why temperatures on...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...
Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Qualitative versus Quantitative Data. In Exercises...Ch. 2.1 - Qualitative versus Quantitative Data. In Exercises...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. 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In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.1 - Prob. 53ECh. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.1 - Prob. 55ECh. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.2 - Error Type. Distinguish between random errors and...Ch. 2.2 - Absolute and Relative. Distinguish between the...Ch. 2.2 - Accuracy and Precision. Distinguish between...Ch. 2.2 - Honest Numbers. 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