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Constructing a Pareto chart. Comparisons are easier if you order the bars in a bar graph by height. A bar graph ordered from tallest to shortest bar is sometimes called a Pareto chart, after the Italian economist who recommended this procedure. Pareto charts are often used in quality studies to isolate the "vital few" categories on which we should focus our attention. Here is an example.
Painting new auto bodies is a multistep process. There is an "electrocoat" that resists corrosion, a primer, a color coat, and a gloss coat. A quality study for one paint shop produced this breakdown of the main problem type for the quality of the paint jobs that did not meet the manufacturer's standards:
Make a Pareto chart. Which stage of the painting process should we look at first?
What is the probability that at most 20 people liked the movie?-What is the probability that at least 25 people liked the movie?
what is the probability that a packet will take more
A study of 40 bowlers showed that their average score was 186. The standard deviation of the population is 6. Construct a 95% confidence interval for the mean score of all bowlers
The daily numbers of calls received by the Internal Revenue Service office in July are shown below:
Sketch a scatter plot that could represent data from each of following. Label the axes to indicate the independent and dependent variable.
Standard deviation of $1,500. From a sample of 64 graduates, what is the probability that the mean starting salary is between $41,000 and $42,500?
According to the local union president, the mean gross income of plumbers in the Salt Lake City area follows the normal probability distribution with a mean $45,000 and a standard deviation of $3,000.
Describe this data with an appropriate diagram. What difference would it make if you were given the additional information that many of the workers included in the survey were part time and that a high proportion of the part-time workers were fema..
Cans of Paint Purchased During a recent paint sale at Corner Hardware, the number of cans of paint purchased was distributed as shown. Find the mean, variance, and standard deviation of the distribution.
an investor is considering purchasing a small business. he knows that in case of a good market the business will yield
For a given confidence interval, what is the interpretation of a 96% confidence level?
Find the solution y(x,K). Is it a continuous function of K? Can it be differentiated with respect to K?
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