Mathematics, 05.12.2019 06:31 geg05
(10 points) a market research firm supplies manufacturers with estimates of the retail sales of their products from samples of retail stores. marketing managers are prone to look at the estimate and ignore sampling error. a random sample of 36 stores this year shows mean sales of 75 units of a small appliance with a standard deviation of 6 units. during the same point in time last year, a random sample of 49 stores had mean sales of 68 units with standard deviation 7 units. it is of interest to construct a 95 percent confidence interval for the difference in population means −, where is the mean of this year's sales and is the mean of last year's sales. enter values below rounded to three decimal places. (a) the estimate is: . (b) the standard error is: .
Answers: 1
Mathematics, 21.06.2019 19:30
The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.
Answers: 3
Mathematics, 21.06.2019 22:30
Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?
Answers: 1
Mathematics, 21.06.2019 23:30
How do you write 600 as a product of its prime factors (index! )
Answers: 1
(10 points) a market research firm supplies manufacturers with estimates of the retail sales of thei...
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