The purchase patterns for two brands of toothpaste can be expressed as a Markov process with the following transition probabilities: Which brand appears to have the most loyal customers? Explain.
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The purchase patterns for two brands of toothpaste can be expressed as a
Markov process with the following transition probabilities:
Which brand appears to have the most loyal customers? Explain.
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- Many students at Matt's school claim they can think more clearly while listening to their favorite kind of music. Matt thinks music interferes with thinking clearly. To test this, he recruits 84 volunteers and randomly assigns them to two groups. The “Music” group listens to their favorite music while playing a “matching” memory game. The “No Music” group plays the same game in silence. Below are summary statistics for the number of turns it took each subject to complete the game (fewer turns indicates a better performance). (a) Is there convincing evidence that listening to music increases the number of turns required to finish the memory game? (b) Suppose Matt allowed people to choose whether or not they were in the group that listened to music while playing the game? Give an example of a problem that might arise if the subjects were allowed to do this.A school knows that 38% of its incoming students own a smart phone and a tablet. What percent of students who own a smart phone also own a tablet if 84% of students own a smart phone? (1) 32% (3) 45% (2) 38% (4) 51%When 20 employees were first hired in 2011 for a creative engineering firm, Company A, the starting annual salary was $35,000. A competing creative engineering firm, Company B, had the same starting salary for 20 employees hired the same year. In 2016, data was collected on the annual salaries of the same employees at each of the two companyies. This data is displayed in the box plot shown. Part A: Compare the annual salary distributions and what are the pros and cons of working at each company? Explain using what you found in Part A
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