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67. Work Commuting Methods. Public transportation and the automobile are two meth- ods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes. 37 33 25 29 32 41 34 32 29 31 33 32 34 30 31 32 35 33 Public Transportation: 28 29 Automobile: a. Compute the sample mean time to get to work for each method. b. Compute the sample standard deviation for each method. c. On the basis of your results from parts (a) and (b), which method of transportation should be preferred? Explain.

67. Work Commuting Methods. Public transportation and the automobile are two meth- ods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes. 37 33 25 29 32 41 34 32 29 31 33 32 34 30 31 32 35 33 Public Transportation: 28 29 Automobile: a. Compute the sample mean time to get to work for each method. b. Compute the sample standard deviation for each method. c. On the basis of your results from parts (a) and (b), which method of transportation should be preferred? Explain.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Chapter 3 Descriptive Statistics: Numerical Measures 353 437 431 354 444 461 464 445 384 405 458 430 469 468 424 407 374 387 367 372 404 369 446 422 441 470 417 468 436 401 394 448 387 402 357 413 460 368 390 388 416 430 445 360 435 351 352 430 464 367 a. What is the mean number of minutes spent interacting with others for this sample? How does it compare to the mean reported in the study? b. What is the standard deviation for this sample? c. Are there any outliers in this sample? 67. Work Commuting Methods. Public transportation and the automobile are two meth- ods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes. Public Transportation: 28 29 32 37 33 25 29 Automobile: 29 31 33 32 34 30 31 32 41 34 32 35 33 a. Compute the sample mean time to get to work for each method. b. Compute the sample standard deviation for each method. c. On the basis of your results from parts (a) and (b), which method of transportation should be preferred? Explain. d. Develop a boxplot for each method. Does a comparison of the boxplots support your conclusion in part (c)?
Transcribed Image Text:Chapter 3 Descriptive Statistics: Numerical Measures 353 437 431 354 444 461 464 445 384 405 458 430 469 468 424 407 374 387 367 372 404 369 446 422 441 470 417 468 436 401 394 448 387 402 357 413 460 368 390 388 416 430 445 360 435 351 352 430 464 367 a. What is the mean number of minutes spent interacting with others for this sample? How does it compare to the mean reported in the study? b. What is the standard deviation for this sample? c. Are there any outliers in this sample? 67. Work Commuting Methods. Public transportation and the automobile are two meth- ods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes. Public Transportation: 28 29 32 37 33 25 29 Automobile: 29 31 33 32 34 30 31 32 41 34 32 35 33 a. Compute the sample mean time to get to work for each method. b. Compute the sample standard deviation for each method. c. On the basis of your results from parts (a) and (b), which method of transportation should be preferred? Explain. d. Develop a boxplot for each method. Does a comparison of the boxplots support your conclusion in part (c)?
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