Smartphones have become ubiquitous for most people and have become the predominant means of communication among people.

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Smartphones have become ubiquitous for most people and have become the predominant means of communication among people. Consider the following data indicating the number of minutes in a month spent interacting with others via a smartphone for a sample of 50 smartphone users. 

353 458 404 394 416 437 430 369 448 430 431 469 446 387 445 354 468 422 402 360 444 424 441 357 435 461 407 470 413 351 464 374 417 460 352 445 387 468 368 430 384 367 436 390 464 405 372 401 388 367


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?

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Statistics For Business & Economics

ISBN: 9781337901062

14th Edition

Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran

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