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The Pentel Microchip Company has started production of its new microchip. The first phase in this production is the wafer fabrication process. Because of the great difficulty in fabricating acceptable wafers, many of these tiny wafers must be rejected because they are defective. Therefore, management places great emphasis on continually improving the wafer fabrication process to increase its production yield (the percentage of wafers fabricated in the current lot that are of acceptable quality for producing microchips). So far, the production yields of the respective lots have been 15, 21, 24, 32, 37, 41, 40, 47, 51, 53 percent. Use exponential smoothing with trend to forecast the production yield of the next lot. Begin with initial estimates of 10 percent for the expected value and 5 percent for the trend. Use smoothing constants of α = 0.2 and ß = 0.2.
Can the college conclude that the students in the new program are significantly different from the freshman class? Use a two-tailed test with an alpha level of .05?
The mean weight for a certain type of fish is known to be 28.0 ounces with a standard deviation of 2.5 ounces . A game warden catches and weighs 30 fish from a certqin pond to check if they are larger than the mean stated above.
Compute an exponentially smoothing forecast using an alpha value of .30. Compute an adjusted exponentially smoothed forecast (alpha = .30 and beta= .20).
if the bonferroni procedure is used to maintain an overall significance level of .05 for three comparisons the
a collection of paired data consists of the number of years that students have studied spanish and their scores on a
Identify a scientific or real-world problem with a relevant data set
I. Monthly Microsoft stock prices (MSFT) prices from Yahoo Finance at htto://www.whoo.com/finance. Monthly S&P 500 Index (405PC) from Yah00 Finance.
thirty percent of american parents allow their children under age 13 to stay home alone after school. source united
1. a researcher for reasons passing understanding wishes to assess the association between gender and total cholesterol
What is the total population for the 15-64 year olds for your region? What is the total population for the over-65 year olds for your region?
What is the minimum score needed to be in the top 25% on this test? Carry your intermediate computations to at least four decimal places.
For a particular plant hybrid, the flowers of any given plant have a 75% chance of being red. (a) What is the probability that in 8 plants, exactly 6 have red flowers? Use your formulasheet and basic calculator functions only.
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