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Study Resources (Statistics)

Using the data below, test whether education and smoking status are independent. Run the test at a 5% level of significance. 1) Write out the appropriate null hypothesis and the alternative hypothesis; 2) Calculate the test statistic; 3) Give your conclusion including a comparison to alpha or the critical value. .
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Using four decimal digit accuracy, explain if the respective distribution applies and, if so determine the probability that at least 5 and at most 7 of 1000 randomly tested micro circuit from a shipment of 25,000 will fall assuming that historically and consistently on average 1 in every 125 tested.
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Using software Isee Technology Guidel SEVERAL-SAMPLE STUDIES northeast), and Squirrel Hill (a residential 180 off-campus students at a certain university area a couple of miles southeast). Here are usually opt for housing in one of three the in rents charged for one-bedroom apartments advertised for these areas in the classified.
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Using the deseasonalized trend line below generated from sales data from the past 3 years (12 qtrs):                                     y = 900 -   2.5t               Assuming seasonal indices for the 4 qtrs are 0.95, 1.10, 1.15, and 0.80, respectively, forecast the seasonalized sales for the.
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Using the empirical rule, determine the approximate percentage of a normal distribution that is expected to fall within the interval described. Less than the mean Greater than 1 standard deviation above the mean Less than 1 standard deviation above the mean Between 1 standard deviation below the mean and 2.
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Using the Central Limit Theorem. Use this information about the overhead reach distances of adult females:205.5 cm, 8.6 cm, and overhead reach distances are normally distributed (based on data from the Federal Aviation Administration). The overhead reach distances are used in planning assembly work stations. If 25 adult females are.
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Use the sensitivity reports to answer the following questions: Your objective is to Max total profit ($). What is the value of the optimal Z*? Which constraint(s) are not binding? Independently consider the following options, which one(s) would you consider pursuing, if any? [Circle Y or N for each row].
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