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Question: The accompanying tab le shows a portion of quarterly data on Nike's revenue for the fiscal years 2001 through 2010. Data for a fiscal year refers to the time period from June 1 through May 31. Theen tired a ta set can be found on the text website, labeled Nike Revenue.
a. Use one-way ANOVA to determine if the data provide enough evidence at the 5% significance level to indicate that there are quarterly differences in Nike's revenue.
b. Given your response to part a, does the construction of confidence intervals using Fisher's orTukey's methods provide further information? Explain.
Serious worker injuries at a steel fabricating company average 2 per year. How many serious injuries would you expect next year?
Cite examples of organizations that use each targeting strategy, i.e. undifferentiated, differentiated and concentrated. Discuss why they have chosen this strategy.
From a population of cereal boxes marked "12 ounces," a sample of 81 boxes is selected and the contents of each box is weighed. You want to test whether the population mean is different from 12 ounces.
The sample size n , the sample means, and the sample standard deviations for the two groups are given below.
What is the probability that the average section in the sample can withstand an earthquake measuring at least 3.6 on the Richter scale?
Use this poll result to give 70%, 80%, 90% and 99% confidence intervals for the proportion of all adults who feel this way. What do your results show about the effect of changing the confidence level? (Use Excel)
Calculate the exact percentage, within a randomly selected list, of neighbouring digits that would have the same value, and the percentage of neighbours whose value differs by 1 (and do NOT count 0 and 9 as differing by 1).
Does the normal distribution yield a good approximation of the actual results?
A large population of overdue bills has balances that follow a normal curve. When we take a sample of 100 of these the average is $500 and the SD is $100.
What discount rate should a house-flipper use if they want to stay in business for awhile? Give an example
a spinner is divided into 4 equal spaces. a player bets 2.00 on a given space. if the spinner lands on that space he is
a deck of ordinary cards is shu?ed and 13 cards are dealt. what is the probability that the last card dealt is an
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