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The line width of for semiconductor manufacturing is assumed to be normally distributed with a mean of 0.5 micrometer and a standard deviation of 0.05 micrometer.
a) What is the probability that a line width is greater than 0.62 micrometer?
b) What is the probability that a line width is between 0.47 and 0.63 micrometer?
c) The line width of 90% of samples is below what value?
Using t test for significance of slope to determine whether the independent variable is a significant predictor of the dependent variable - Find the sum of the least squares slope and intercept parameter?
A. What is the coefficient of determination? B. What is the correlation coefficient? C. What is the sampl mean of Y?
Give the regression model for predicting a person's height from his or her weight. Interms of these variables, explain what the slope of this model represents here
testing for population mean.a quality control expert is called in to determine whether a newly installed machine is
Professor Green gives two-month computer programming courses during the summer term. Students must pass a number of exams to pass the course, and each student is given three chances to take the exams
Calculate the limits within which the weight of the packets should lie assuming that the machine is not been classified as faulty.
A random sample of 49 employees took a computer literacy test. The sample resulted in a mean score of 75 with a standard deviation of 21. Develop an approximate 95% confidence interval for the population mean of the 600 employees.
Find the probability that a randomly selected employee earns less than $5.43.
Results are normally distributed with mean 200 and standard deviation 50. find probability that a single score will be less than 264.
If 49 applicants are randomly chosen, what is the probability that they will have a rating between 230 and 260? Round z scores to two decimal places.
Known population of 1000 students to construct a 95% confidence interval for teh average SAT score. What correction factor should be used to compute the standard error?
With the test statistic you chose, work out the problem with solution using .05 level of significance if it applies.
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