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The data set absorb .txt contains data from a silica processing plant. One key quality parameter for silica is the amount of oil it can absorb since silica is often mixed with rubber and oil in various rubber applications (battery sep arators, tires, shoe soles, etc.). The measurements here represent the average oil absorption of the silica produced on one shift.
(a) Construct a histogram for the data and describe its properties.
(b) Construct a runs chart for the data.
(c) Write a brief summary of the two data displays contrasting the infor mation gained by each plot.
What is one of the two differences between the way ZST or ZLT are calculated?
suppose that x is a continuous random variable with probability density function fx x18 over the interval 0 ? x ? 6.
suppose the covariance between y and x is 0.03 and that the variance of y is 0.04 and the variance of x is 0.12. the
In recent years, the interest rate on home mortgages has declined to less than 6.0 percent. However, according to a study by the Federal Reserve Board
A machine that fills quart orange juice bottles is set to fill them with 32.1 oz. If the actual contents of the cartons vary normally, with a standard deviation of .1 oz, what percent of the cartons contain less than a quart (32 oz).
Write the quadratic equation whose roots are 5 and 4, and whose leading coefficient is 1.(Use the letter x to represent the variable.) Write the quadratic equation whose roots are 1 and 2, and whose leading coefficient is 2
For a certain insurance contract, on (50), the death benefit for the first year. If the value of q50 is changed to 0.25, while all other value of qx are unchanged, what is the new single premium?
Choose at random one of the random sample averages of 5 rectangles. Calculate the average value for a random sample of 20 rectangles.
consider the following. give your answers correct to two decimal places.a find the standard score z such that the area
Find the confidence interval for the mean price, μ, of all dealer sticker prices of new cars: for a confidence level of 90% in thousands of dollars:
State the decision rule. Compute the value of the test statistic. What is your decision regarding the null hypothesis?
Construct upper and lower control limits for the x chart, using the given product parameters. (b) Plot the data on the control chart. (c) Is this process in control? Explain your reasoning.
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