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In a drilling operation, four factors(A, B, C, and D), each at three levels, are thought to be of importance in influencing the volume of crude oil pumped. Using an L9 orthogonal array, the factors A, B, C, and D are assigned to columns 1, 2, 3, and 4, respectively. The response variable showing the number of barrels (in thousands) pumped per day for each of the nine experiments is as follows:
Experiment
1
2
3
4
5
6
7
8
9
Barrels per Day (thousands)
6.8
15.8
10.5
5.2
17.1
3.4
5.9
12.2
8.5
Show the experimental design and the response variable for the corresponding experiments. Determine the main effects. Plot the average response curves. What are the optimal settings of the design parameters?
urn a has 12 white and 16 red balls. urn b has 3 white and 8 red balls. we flip a fair coin. if the oucome is heads
Find the value of the sample standard deviation - The frequency distribution analyzes the exam scores on a statistics test.
12 fall outside these specifications. construct the 95% confidence interval for the percentage of all boards in this shipment that fall outside the specifications.
question 1 a dice is rolled five times.i what is the probability that it shows 3 even numbers?ii what is the
Develop a simple linear regression model based on least squares that predicts advertising revenue per page from circulation (i.e., feel free to transform either the predictor or the response variable or both variables). Ensure that you provide jus..
Below are two data sets. Using descriptive statistics, discuss the two data sets in relation to each other. Both data sets come from an operation where potato chips are being placed in small connivance store bags that are to hold 6.0 oz.
The manager of a restaurant knows from experience that 70% of the people who make reservations for the evening show up for dinner. The manager decides one evening to overbook and accept 20 reservations when only 15 tables are available. What is th..
Differentiate the main actions between doing and improving your activities
The time between arrivals of customers at the drive-up window of a bank follows an exponential probability distribution with a mean of 10 minutes. What is the probability that the arrival time between customers will more than 20 minutes?
For reservation purposes, the agency's management wants to ?nd the number of people such that the probability is 0.85 that at least that many people will sign up. It also needs 0.80 probability bounds on the number of people who will sign up for t..
The shell thicknesses of the eggs produced by a large flock of hens follow approximately a normal distribution with mean equal to 0.38 mm and standard deviation equal to 0.03 mm. Find the 95th percentile of the thickness distribution.
Suppose a new estimator for the population mean is discovered. The new estimator is unbiased and has variance equal to σ2/n2. Discuss the merits of the new estimator compared with the sample mean.
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