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A cruise ship charges passengers $3 for a can of soda. Because of passenger complaints, the ship manager has decided to try out a plan with a lower price. He thinks that with a lower price, more cans will be sold, which would mean that the ship would still make a reasonable total profit. With the old pricing, the mean number of cans sold per passenger for a 10-day trip was 10.3 cans. Suppose m represents the mean number of cans per passenger for the new pricing. What hypotheses should the ship manager test if he wants to determine if the mean number of cans sold is higher for the new pricing plan?
what are the four states of the decision environment? discuss which management science techniques could be useful for
Beginning in March 1981, R. Foster Winans was a Wall Street Journal reporter and one of the writers of the "Heard on the Street" column (the "Heard" column), a widely read and influential column in the Journal.
You have learned (or will learn) in optics that certain lenses (namely, thin spherical lenses) can be characterized by a parameter called the focal length f.
Given that X¯ = 78, σ2 = 25, n = 10, and α = 0.05, test H0: µ > 80, assuming observations are randomly sampled from a normal distribution.- Also, draw the standard normal distribution indicating where Z and the critical value are located.
q1. in a city in italy 30 of the families have a mastercard 20 have an american express card and 25 have a visa card.
In a random sample of 10 Wisconsin high school students, what is the probability than 8 or fewer will graduate?
(a) Let X be the number of field goals that Mimi scores in the game. As we know, the distribution of X is a binomial probability distribution. What is the number of trials (n), probability of successes (p) and probability of failures (q), respect..
For each of the following three populations, indicate what the sampling distribution for samples of 25 would consist of: Travel expense vouchers for a university in an academic year.
The following data pertain to the chlorine residual in a swimming pool at various times after it has been treated with chemicals:
To determine if there is a negative relationship between the weight of the pool cue and the speed attained by the cue ball, calculate a correlation coefficient.
assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of 2275
the output y of a binary communication channel is a unit-variance gaussian random variable with mean zero when the
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