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A manager of a large corporation recommends a $10,000 raise be given to keep a valued subordinate from moving to another company. What internal and external sources of data might be used to decide whether such a salary increase is appropriate?
A survey of 430 business travelers found 155 business travelers used a travel agent to make the travel arrangements (USA Today, November 20, 2003).
a. Develop a descriptive statistic that can be used to estimate the percentage of all business travelers who use a travel agent to make travel arrangements.
b. The survey reported that the most frequent way business travelers make travel arrangements is by using an online travel site. If 44% of business travelers surveyed made their arrangements this way, how many of the 430 business travelers used an online travel site?
c. Are the data on how travel arrangements are made categorical or quantitative?
Create an operational definition of your construct using at least three peer-reviewed journal articles as references. Select and list five items used to sample the domain.
Evaluate the difference in the mean ratings and find the standard deviation of the difference in the ratings, what is the chance both children are boys?
If the research question were defined as will buyers purchase more of a product in a blue colored or silver package? the most appropriate type of research would be
Construct a payoff table for Mountain Ski's decision problem of how many pairs of skis to order. What is the best decision from an expected value basis?
The times it takes workers to complete a task at a certain assembly plant are normally distributed with mean = 10 minutes and standard deviation = 2 minutes.
a pharmaceutical company is checking their medicines according to the regulations imposed. the company must ensure that
Use the Kolmogorov-Smirnov test to discover whether the distribution of location of accidents is uniformly distributed for the month of September
The cutoff (or cutoffs), and the score of the sample on this distribution. Then explain your answer to someone who has never had a course in statistics (but who is familiar with mean, standard deviation, and Z scores).
Ford Taurus travels 21 mi. while consuming exactly 1 gallon of gas. You developed a modification to the engine you believe increases the distance. If you want to justify your claim of increased mileage by using a hypothesis test
Create a linear model to estimate the number of points students will score on the next exam from the number of hours the student studies.
Compensation to passengers who lose their luggage. By how much should the airline increase fares? Why? Explain, using the ideas of a random variable and its expectation.
What size random sample should you take if you want to estimate the annual salary in the population with 99 percent confidence and a maximum margin of error of $250?
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