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Nonconformities in automobiles fall into three categories: serious, major, and minor. Twenty-five samples of five automobiles are chosen, and the total number of nonconformities in each category is reported.
Table shows the results. Assuming a weighting system of 50, 10, and 1 for serious, major, and minor nonconformities, respectively, construct a demerits per unit control chart. Revise the control limits if necessary, assuming special causes for points that are out of control.
Probability using Z-score.Find the probabilities that a random variable Z having a standard normal distribution will take on a value.
sixty percent of all vehicles examined at a certain emissions inspection station pass the inspection. assuming that
Question: Identify the independent and dependent variables and at least one potentially confounding variable. State how the confounding variable(s) might be controlled.
A sample of 65 observations is selected from one population with a population standard deviation of 0.75. The sample mean is 2.67.
Based on surveys conducted in 1989 and 1999, a researcher compared the proportion of high school age females interested in a career in science in 1989 with the proportion in 1999. He concluded that the proportions were not significantly different ..
An independent samples t test was used to determine whether student satisfaction levels in a quantitative reasoning course differed between the traditional classroom and on-line environments. The samples consisted of students in four face-to-face ..
these cars would fall into the 22 to 27 mpg range? Compute the proportion of cars that get more than 28 mpg. What proportion of cars would get less than 23 mpg?
the following is the heart rate for 10 randomly selected patients on the unit. find the mean variance and standard
the pulse rates for 13 adult women were as follows. construct a 0.99 confidence interval for the mean pulse rate. give
Form the cumulative percentage distribution and plan a cumulative percentage polygon.
WNAE, an AM station totally dedicated to deliver news, found that while the Distribution of listeners tune in the station follows the normal Distribution.
The repeated-measures analysis of variance can be viewed as a two-stage process. What is the purpose for the second stage? Compare the repeated-measures analysis of variance with the regular ANOVA.
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