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Assume a factory manager wishes to buy machines to perform a certain task in a production process. Certain key parts are produced by these machines. There are three companies that make such machines and, furthermore, he obtains one from each company for testing which of the three is best suited for this purpose. Each machine is operated by one person and there are many people who would be using these machines. In other words, if the factory has fifty workers doing this task, then he needs fifty machines. Design an experiment to test how the manager can pick the best one given that he only has one from each company to test.
Find or create a data set that would allow you to explain what is meant by mean, median and mode. Make sure to also show any calculations or formula necessary. Describe or provide as much information on the data set as possible.
For a regional survey of suburban households to obtain data on television viewing habits, a statistical sample of suburban areas is first selected. Within the chosen areas, statistical samples of whole blocks are selected; and within the selected..
Use a scatter plot to determine the relationship between the x values and the y values.
Plot the data on U.S. general aviation shipments (b) Describe the patterns and discuss possible causes.(c) Would a fitted trend be helpful? Explain. (d) Make a similar graph for 1992-2003 only.
The pooled variance of two samples is:
Of the 1,4000 homemakers sampled, 420 were able to identify the brand by name. Compute the standard error of the proportion.
the maximum point total for the quarter was 200. The point totals for the 10 students are given in the stemplot below. For the density curve displayed below, which of the following is true?
Be sure to include information about how you would use the concept of probabilities to apply to profiles for hiring more satisfied individuals.
A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to repair a colour television is $90 with a standard deviation of $22. Monte's TV Sales and Service completed repairs on two sets this morning. The labor cost for the..
There are three versions of a board game released - version 1, version 2, and version 3. The versions are distributed equally and evenly among all potential sellers of board games.
The Appliance Center has six sales representatives at their North Jacksonville outlet. Listed below is the number of refrigerators sold by each last month.
A large internet retailer is studying the lead time (elapsed time between the time when the order is placed and the time it is filed). The table below gives the lead times (in days) for a random sample of recent orders.
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