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The International Coffee Association has reported the mean daily coffee consumption for U.S. residents as 1.65 cups. Assume that a sample of 38 people from a North Carolina city consumed a mean of 1.84 cups of coffee per day, with a standard deviation of 0.85 cups. In a two-tail test at the 0.05 level, could the residents of this city be said to be significantly different from their counterparts across the nation?
Briefly identify and contrast the methods used by the psychoanalytic perspective, the humanistic perspective, and the trait perspective to assess personality.
Find the probability that at least one subject experiences headaches. Is it unusual to have at least one of six subjects experience headaches?
Determine the sample space of one such throw and determine the probability for each event and in the game of Ludo, a player has to throw one die and move a selected token based on the number shown on the die.
What is meant by a probability distribution? Discuss how you could use one of the text probability distribution at your workplace to help solve a business problem.
Illustrated significant negative relationship between amount of homework assigned and student attitudes. Determine the explanatory variable and explain the response variable?
Critically discuss some reasons that business outputs vary? For example why does production output vary? Explain the difference between common causes of variation and special causes of variation.
Explain these results to a person who understands the t test for a single sample but knows nothing about the t test for independent means.
Linda would like to maintain a 90% service level. what safety stock level do you recommend for BX-5?
f x has a normal distribution with mean µ=15 and standard deviation σ= 3, describe the distribution of x values for sample size n, where n = 4, n = 16, and n = 100. How do the x distributions compare for the various sample sizes?
What is the value of the sample test statistic? (Test the difference p1 - p2. Do not use rounded values. Round your final answer to two decimal places.)
At a local supermarket receiving dock, the number of truck arrivals per day is recorded for 100 days. Estimate the mean from the sample.
An entrepreneur in a developing country owns 10 food carts. He has ten employees to work with these food carts. Let Xi be a random variable representing revenue from cart i (on a particular day), i = 1,..., 10. Xi is approximately normally distrib..
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