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Suppose the 5,000 sales invoices are separated into four strata. Stratum 1 contains 50 invoices, and 2 contains 500 invoices, stratum 3 contains 1,000 invoices, and stratum 4 contains 3,450 invoices. A sample of 500 sales invoices is needed. a) What type of sampling should you do? Why? b) Explain how you would carry out the sampling according to the method sated in (a) c) Why is the sampling in (a) not simple random sampling?
How many turnstiles must be opened in each direction every morning and describe the suppositions underlying the solution of this problem by using queuing theory.
Discuss the importance of the independent variable in Linear Regression.
the business manager of a large corporation wanted to determine whether there was a difference between what salesmen
The owner of a single-family home would like to develop a model to predict electricity consumption in his house, based on average atmospheric temperature in degrees Fahrenheit.
Find the probability of given case.
Graphical Solutions in Linear Programming have limited number of decision variables. What is the maximum number of decision variables used in graphical solutions?
Identify sample, population, sampling frame (if applicable), and response rate (if applicable). Describe sampling technique (if applicable) or experimental design
Critical Thinking
Internet and the articles database in the library for a real-life illustration of simulation. For hint, type the word "Simulation" followed by a topic of interest to you. Carefully review the search item.
Epidemiology question set
what portion of variation in stock price percentage change is explained by the percent change in profit and what is the approximate predicted value for tips if the total bill is $100?
Identify the type of study proposed and indicate its specific strengths and weaknesses
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