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A manufacturing firm has collected information on the number of defects produced each day for the past 50 days. The data have been described by the accompanying Minitab box-and-whisker plot.
a. What is the approximate value of the median? The first and third quartiles?
b. What do the asterisks (*) at the right of the display indicate? What implications might they have for the production supervisor?
c. Does the distribution appear to be symmetric? If not, is it positively skewed or negatively skewed?
assume the readings on thermometers are normally distributed with a mean of 0 degrees celsius and a standard deviation
Recent actual and forecasted data for product XYZ is given in the following table.
From the calculator manufacturer?s point of view, which type of error would be considered more serious and explain why? From the printed circuit supplier?s point of view, which type of error would be considered more serious and explain why?
Any person who is familiar with these trees understand the height of a California redwood tree which is related to another characteristics of the tree.
Aggregate the opinions of the experts by computing the minimum, maximum, 25 th percentile, 50 th percentile, and 75 th percentile values.
The mean weight is 402.7 grams and the standard deviation 8.8 grams. What is the probability that the mean weight for a sample of 40 trout exceeds 405.5 grams?
The first randomly selected drinker qualifies.- Three soft drink users will have to be interviewed to find the first Gatorade drinker.
When the necessary conditions are met, a two-tail test is being conducted to test the difference between two populations proportions.
q1. find the area under the standard normal curve from z 0 to z 0.74.q2. find the area under the standard normal curve
a screw jack carries a 5 kn load. it has an m50 times 4 mm thread with a mean diameter of 47.4 mm. calculate the screw
The lengths of pins produced by a machine follow a normal distribution with mean 2.54 cm and standard derivation 0.04 cm.
a study has indicated that the sample size necessary to estimate the average electricity use by residential customers
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