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The smallest defect in a computer chip will render the entire chip worthless. Therefore, tight quality control measures must be established to monitor the chips. In the past, the percentage defective for these chips has been 1.1%. The sample size is 1,000. Dtermine the upper and lower control chart limits for these computer chips. Use z=3. Solve using QM for windoes or Excel.
Four percent of DVD players manufactured by an electronics company are defective. Suppose six DVD players are randomly selected from the production line. Each DVD player is determined to be defective or non-defective.
For each problem, compute a Welch F-statistic and determine whether or not significant differences exist among the treatment conditions.
Use PHStat to make a box-whisker plot. If PHSTAT has yet to be installed, calculate Xmin, Xmax, Q 1 , Q 3 and median using equation in Class Notes-Quartiles, Percentile & Dectiles.
Find Probability of independent events.Consider again the auto repair rates described. If you own two cars, what is the probability that.
During the past year, the mean sales of Wshington Reds in cases was 45,000 cases, and the standard deviaiton was 4,450. How many cases of Washington Reds should be brought to market? Assume the sales follow a normal distribution.
Which one of these statements concerning the creation of frequency tables for integer data is true? The procedure for creating them is the same as that for creating tables for qualitative data.
Both days have sample standard deviations of 3.4. Is the average mean of size different from day 1 to day 2?
In the biology class the mean score was 79 with standard deviation 5.
Here are the shopping times (in minutes) for a sample of shoppers at a particular shoe store: 25, 38, 34, 41, 37 and find the standard deviation of this sample of shopping times. Round your answer to at least two decimal places.
The manager of Sandy Corporation wants to determine whether or not the type of work schedule for her employees has any effect on their productivity. She has selected 15 production employees at random and then randomly assigned 5 employees to each ..
The average family size was reported as 3.18. A random sample of families in a particular school district resulted in the following family sizes: 5 4 5 4 4 3 6 4 3 3 5 6 3 3 2 7 4 5 2 2 2 3 52
Assuming that these results are sample data randomly selected from the population of all past and future Olympic games
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