Statistics for Business and Economics (13th Edition)
Statistics for Business and Economics (13th Edition)
13th Edition
ISBN: 9780134506593
Author: James T. McClave, P. George Benson, Terry Sincich
Publisher: PEARSON
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Chapter 10, Problem 10.45ACB

Stereotyping in deceptive and authentic news stories. Major newspapers lose their credibility (and subscribers) when they are found to have published deceptive or misleading news stories. In Journalism and Mass Communication Quarterly(Summer 2007), University of Texas researchers investigated whether certain stereotypes (e.g., negative references to certain nationalities) occur more often in deceptive news stories than in authentic news stories. The researchers analyzed 183 news stories that were proven to be deceptive in nature and 128 news stories that were considered authentic. Specifically, the researchers determined whether each story was negative, neutral, or positive in tone. The accompanying table gives the number of news stories found in each tone category.

Authentic News Stories Deceptive News Stories
Negative tone 59 111
Neutral tone 49 61
Positive tone 20 11
Totals 128 183
Source; Based on D. Lasorsa and J Dai “When News Reporters Deceive: The Production of Stereotypes.” Journalism and Mass Commumcation Quarterly. Vol. 84. No. 2 Summer 2007 (Table 2).

a. Find the sample proportion of negative tone news stories that are deceptive.

b. Find the sample proportion of neutral news stories that are deceptive.

c. Find the sample proportion of positive news stories that are deceptive.

d. Compare the sample proportions, parts a–c. Does it appear that the proportion of news stories that are deceptive depends on story tone?

Chapter 10, Problem 10.45ACB, Stereotyping in deceptive and authentic news stories. Major newspapers lose their credibility (and

Minitab output for Exercise 10.45

e. Give the null hypothesis for testing whether the authenticity of a news story depends on tone.

f. Use the Minitab printout above to conduct the test, part e. Test at α = .05.

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Chapter 10 Solutions

Statistics for Business and Economics (13th Edition)

Ch. 10.2 - Prob. 10.11ACICh. 10.2 - Prob. 10.12ACICh. 10.2 - Mobile device typing strategies. Text messaging on...Ch. 10.2 - Prob. 10.14ACICh. 10.2 - Coupon user study. A hot topic in marketing...Ch. 10.2 - Cell phone user survey. If you subscribe to a cell...Ch. 10.2 - Overloading in the trucking industry. Although...Ch. 10.2 - Political representation of religious groups. Do...Ch. 10.3 - Find the rejection region for a test of...Ch. 10.3 - Consider the 2 3 (i e., r = 2 and = 3)...Ch. 10.3 - Refer to Exercise 10.20. a. Convert the frequency...Ch. 10.3 - Test the null hypothesis of independence of the...Ch. 10.3 - Refer to Exercise 10.22. a. Convert the responses...Ch. 10.3 - Safety of hybrid cars. According to the Highway...Ch. 10.3 - Purchasing souvenirs. A major tourist activity is...Ch. 10.3 - Prob. 10.26ACBCh. 10.3 - Are travel professionals equitably paid? Business...Ch. 10.3 - Eyewitnesses and mugshots. Refer to the Applied...Ch. 10.3 - Package design influences taste. Can the package...Ch. 10.3 - Job satisfaction of women in construction. The...Ch. 10.3 - Offshoring companies. Refer to The Journal of...Ch. 10.3 - Prob. 10.32ACICh. 10.3 - Prob. 10.33ACICh. 10.3 - Prob. 10.34ACICh. 10.3 - Prob. 10.35ACICh. 10.3 - Prob. 10.36ACICh. 10.3 - Prob. 10.37ACICh. 10.3 - Coupon user study. Refer to the study of a...Ch. 10.3 - Examining the Monty Hall Dilemma. In Exercise...Ch. 10 - A random sample of 250 observations was classified...Ch. 10 - Prob. 10.41LMCh. 10 - Made in the USA survey. Refer to the Journal of...Ch. 10 - Prob. 10.43ACBCh. 10 - Survey on giving and volunteering (continued)....Ch. 10 - Stereotyping in deceptive and authentic news...Ch. 10 - Prob. 10.46ACBCh. 10 - Prob. 10.47ACICh. 10 - Pig farm study. An article in Sociological Methods...Ch. 10 - Management system failures. Refer to the Process...Ch. 10 - History of corporate acquisitions. Refer to the...Ch. 10 - Creating menus to influence others. Refer to the...Ch. 10 - Prob. 10.52ACICh. 10 - Prob. 10.53ACICh. 10 - Prob. 10.54ACICh. 10 - Flight lesponse of geese to helicopter traffic....Ch. 10 - Prob. 10.56ACACh. 10 - Goodness-of-fit test. A statistics analysis is to...Ch. 10 - Prob. 10.58CTCCh. 10 - A television station has hired an independent...Ch. 10 - Suppose the television station believes that a...Ch. 10 - Generalize the situations in Exercises 1 and 2 to...Ch. 10 - In this Activity, you will revisit Activity 3.1,...Ch. 10 - Prob. 10.2.2ACh. 10 - Perform a x2 test for independence for the example...
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