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The following formula was used in the estimation of a physical constant:
Assuming that x10 = 10, x20 = 40, X30 = 7, and X40 = 70, calculate y. Estimate the approximate standard deviation of y given that the standard deviations of the x's are σ1 = 5, σ2 = 7, σ3 = 4, σ4 = 10. Obtain the necessary derivative (a) algebraically and (b) numerically. Using the numerical method, check the linearity assumptions.
List all samples of 3 and compute the mean of each sample. Compute the mean of the distribution of sample means and population mean. compare the two values
You take a random survey of 20 students and their ACT scores are: {26,22,23,12,19,25,23,21,25,10,17,26,23,24,20,14,21,23,20,22} If you know the test scores are normally distributed. What is the confidence interval at 95%?
a locomotives adhesion is the locomotives pulling force as a multiple of its weight. this is an important performance
The mean height of men aged 18 to 24 is about 70 inches. Women that age have a mean height of about 65 inches. Do you think that the distribution of heights.
The true proportion of all current B of A customers who would respond with a 9 or 10. Are we 95 % confident that this proportion exceeds .48 the historical proportion of customer delight for B of A?
Determine if the number of lettuce heads harvested for the two lettuce types is independent of the levels of sodium absorption ratios (SAR).
An article reports that when each football helmet in a random sample of 44 suspension-type helmets was subjected to a certain impact test, 25 showed damage.
To test the comparative brightness of two red dyes, nine samples of cloth were taken from a production line and each sample was divided into two pieces. One of the two pieces in each sample was randomly chosen and red dye 1 applied; red dye 2 was ..
question suppose that you observe the following service times in minutes by a bank teller 1 2 1 7 2 4.a. what is the
Find the probabilities that the first part is defect free.- the second part is defect free.- both parts are defect free.- one of the parts is acceptable.
You are supervising an audit to decide whether or not any errors in the recording of account transactions are "material errors."
Dishwashers. Dan s Diner employs three dishwashers. Al washes 40% of the dishes and breaks only 1% of those he handles. Betty and Chuck each wash 30%.
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