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Components shipped include 0.5% defectives. You plan to select 80 items; if 0 are defective, you will assume all are okay.
(Using normal approximation to binomial)
a) Find the probability that you will find 0 defectives in 80 items.
b) Find the probability you will find none if p = 1.5%
Determine the 90% confidence interval for average days worked by employees in all payroll departments?
Formulate an appropriate hypothesis test to examine at the 10% level of significance whether the manager's worries are justified.
In the graphical method, how do you know when a problem is infeasible, unbounded, or when it has multiple optimal solutions? Give a real-world example of when you could have an infeasible problem.
According to Fortune, Missouri is within 500 miles of 44% of all U.S. manufacturing plants 8. If a Missouri company needs parts manufactured in 122 different plants, what is the probability that at least half of them can be found within 500 miles ..
What is the 95% confidence interval for the proportion of smokers in the population (to 4 decimals)?
Construct three scatter plots for: (1) percentage alcohol versus calories, (2) percentage alcohol verses carbobydrates, and (3) calories versus carbohydrates
Prepare the confidence interval of 95% for the welders' proportion that graduated in the school of welding.
What is the probability that a random person has an IQ between 85 and 115? Find the 90th percentile of the IQ distribution.
If an applicant is randomly selected, find the probability of a rating that is between 200 and 275.
Set up hypotheses and test to find out whether or not population variance is larger than $100.
A magazine article stated that the average age of women who are getting married for the first time is 26 years. A researcher decided to test this hypothesis at α = .02. She selected a sample of 25 women who were recently married for the first time..
Heights of People - The average height of a certain age group of people is 53 inches. The standard deviation is 4 inches. If the variable is normally distributed, find the probability that a selected individual's height will be:
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