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The file movie prices contains the price for two movie tickets, with online service charges, large popcorn, and two medium soft drinks at a sample of six theater chains: $36.15, $31.00, $35.05, $40.25, $33.75, $43.00
a. Construct a 95% confidence interval estimate for the population mean price for two movie tickets, with online service charges, large popcorn, and two medium soft drinks, assuming a normal distribution.
b. Interpret the interval constructed in (a).
Assume you are one of two manufactures of tennis balls. Both you and your competitor have zero marginal costs. Total demand for tennis balls is
Ken and Gerard are roommates for a weekend and have succeeded in making their living quarters cluttered in very little time.
In the game of roulette, a player can place a $8 bet on the number 33 and have a 1/38 probability of winning. If the metal ball lands on 33, the player gets to keep the $8 paid to play the game and the player is awarded an additional $280.
Calculate the right-hand-side of constraint 1 to 11 (instead of 10) and solve the problem. How much did the profit increase as a result of this?
Job Changes: A sociologist is interested in the relation between x = number of job changes and y = annual salary (in thousands of dollars) for people living in the Nashville area. A random sample of 10 people employed in Nashville provided the fol..
A recent study by Ohio State University (March 5, 2008) suggests that students with cell phones may take more risks than students that do not have cell phones.
You are given the information that P(A) = 0.30 and P(B) = 0.40 (a) Do you have enough information to compute P(A or B)? Explain. (Events A and B are mutually b) If you know that events A and B are mutually exclusive, do you have enough information..
Suppose 70% of kids who visit the doctor have a fever, and 15% of kids with a fever have a sore throat. Whats the probability that a kid who goes to the doctor has a fever and a sore throat?
You randomly call friends who could be potential partners for a dance. You think that they all respond to your requests independently of each other, and you estimate that each one s 7% likely to accept your request. Let X denote the number of call..
Barbara and Juanita, Two basketball players, are best offensive players of the school's team. They know if they work together offensively-feeding the ball to each other,
In the summer ECMBA has a group assignment. Students are assigned to two person groups that have to make a 25 point paper applying game theory to competitive strategy.
A light-bulb manufacturer advertises that the average life for its light bulbs 900 hours. A random sample of 10 of its light bulbs resulted in the following lives in hours. At the 10% significance level, do the data provide evidence that the mean ..
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