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What is the difference between data, information, and knowledge? In your opinion, when does data become information and information become knowledge? Support your answer with relevant examples. Why is meaningful and correct data analysis-statistics-important in using the volumes of available business data?
You are analyzing the cross-store sales of a grocery store chain. As part of your analysis, you compute two measures of central tendency-mean and median. The mean sales are $358.4 million, and the median sales are $163.1 million (per store). To quantify the average per store, which of the two measures would you use and why? Justify the answers with examples and reasoning.
the diameters of pencils produced by a certain machine are normally distributed with a mean of 0.30 inches amd a
a researcher wants to determine if there is a significant difference in the standard deviations of the number of weekly
For each of the following situations, indicate the appropriate measure, incidence rate or prevalence rate and the numerical value of the rate.
A professor asked her sophomore students, "How many drinks do you typically have per session? (A drink is defined as one 12oz beer, one 4oz glass of wine, or one 1oz shot of liquor.)"
When trying to understand the stroke data, what would be the advantage of looking at a histogram instead of this frequency distribution?
Data for a sample of 55 members of the Baseball Hall of Fame in Cooperstown, New York, are shown here. Each observation indicates the primary position played by the Hall of Famers
In a sample of 100 M&M's, it is found that 8% are brown. Use a 0.05 significance level to test the claim that of the Mars candy company that the percentage of brown M&M's is equal to 13%. Identify the null and alternative hypotheses. Find the tes..
Define X as the number of people in the sample who are infected by the diease. What is the distribution of X and what are the parameter values of this distribution?
question two opponents a and b are to play a game which consists of two indenotpendent rounds. to win the game a
according to the uw madison 2003-2004 factbook 11488 of the 24890 students enrolled at uw madison during that year were
let x and y be two independent random variables where x has a bernoulli distribution with probability of success p 12
Commercial A was selected by 45 out of 100 women and 80 out of 140 men. A large-sample 95% confidence interval for this difference is?
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