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In the introductory case, four questions were posed to tweens. The first question (Q1) asked tweens to name the radio station that was playing on the ride to the resort, and the second question (Q2) asked tweens to rate the food quality at the resort on a scale of 1 to 4. The tweens’ responses to these questions are shown in Table 1.1 in the introductory case. What is the scale of measurement of the radio station data? How are the data based on the ratings of the food quality similar to the radio station data? How are the data different? Summarize the tweens’ responses to Q1 and Q2 in tabular form. How can the resort use the information from these responses?
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What is the relevance of statistics?
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After Washington, DC, had record amounts of snow in the winter of 2010, the headline of anewspaper asked, “What global warming?”
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A gambler predicts that his next roll of the dice will be a lucky 7 because he did not get thatoutcome on the last three rolls.
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What Is Big Data?
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On January 10, 2010, nine days prior to a special election to fill the U.S. Senate seat that was vacated due to the death of Ted Kennedy, a Boston Globe poll gave the Democratic candidate, Martha Coakley, a 15-point lead over the Republican candidate, Scott Brown. On January 19, 2010, Brown won 52% of the vote, compared to Coakley’s 47%, and became a U.S. senator for Massachusetts.
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Starbucks Corp., the world’s largest coffee-shop operator, reported that sales at stores open at least a year climbed 4% at home and abroad in the quarter ended December 27, 2009. Chief Financial Officer Troy Alstead said that “the U.S. is back in a good track and the international business has similarly picked up .... Traffic is really coming back. It’s a good sign for what we’re going to see for the rest of the year.” (www.bloomberg.com, January 20, 2010)?
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Researchers at the University of Pennsylvania Medical Center found that infants who sleep with a nightlight are much more likely to develop myopia later in life (Nature, May 1999)?
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