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1. EKA manufacturing company produces Part # 2206 for the aerospace industry. Each unit of part # 2206 is sold for $15. The unit production cost of part # 2206 is $3. The fixed monthly cost of operating the production facility is $3000. How many units of part # 2206 have to be sold in a month to break-even?
2. A company is considering producing some new products. Based on past records, management believes that there is a 60% chance that the first product will be successful, and a 40% chance that the second product will be successful. As these products are completely different, it may be assumed that the success of one is totally independent of the success of the other. If two products are introduced to the market, what is the probability that both are successful?
Compare a three-month moving average forecast with an exponential smoothing fore-cast for a = 0.2. Which provides the better forecasts using MSE as the measure of model accuracy?
What is the probability of finding a sheet chosen at random which contains 3 or more surface flaws and find the greatest standard deviation,
Provide examples of a different data collection method and a data collection instrument used in managerial research. Why is it important to ensure that these data collection methods and instruments are both reliable and valid?
Use the following data to write the normal equations of the linear regression between Y and X, and find the least squares regression.
The heights of 40 randomly selected people and the heights of their mothers are recorded. Statdisk is used to run a linear correlation and regression analysis. The partial results are provided below:
The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 370 grams and a standard deviation of 15 grams. Find the weight that corresponds to each event:
Illustrate the regression model and predict it. The following table shows the yearly maintenance costs for several cars, as well as their age.
The frequency distribution below was constructed from data collected from a group of 25 students. Construct a relative frequency distribution.
Martin Motors has in stock three cars of the same make and model. The president would like to evaluate the gas consumption of the three cars (labeled car A, car B, and car C) using four different types of gasoline. For each trial, a gallon of gaso..
The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?
The researchers gave each subject a battery of nine separate neurological and psychological examinations designed to assess their mental capabilities.
Compare the means of two populations using 96% confidence interval:
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