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A factory which produces chips in lots of ten thousand use the following scheme to check the quality of its product. From each lot of chips produced, a random sample of size 500 is taken. If the sample contains 10 or less defectives, the lot is passed. If the sample contains more than 10 defectives, another random sample of size 500 is chosen from the lot. If this sample contains 10 or less defectives, the lot is passed, otherwise, the lot is rejected. If a lot actually contains 5% defectives, find the chance that it will pass. [approximate by sampling with replacement, and use the normal curve.]
The exchange rate between the Japanese yen and the U.S. dollar is 100.25 yen = 1U.S$. A U.S. company agrees to purchase goods for 50 million yen
During a typical Pennsylvania winter, I80 averages 1.6 potholes per 10 miles. A certain county is responsible for repairing potholes in a 30-mile stretch.
question the probability that an individual egg in a carton of eggs is cracked is 0.03. you have picked out a carton
A clinical trial is run to investigate the effectiveness of an experimental drug in reducing preterm delivery to a drug considered standard care and to placebo.
Elucidate correlation coefficient of determination R-square also Adjusted R-square. A computer utility was implimentated to the data collected in a study of a generalized health.
When testing the hypothesis (at the 5% level of significance) that the variance of the amount spent on trips is significantly larger in one department than the other, what is the null and alternative hypotheses? (please write out the null and alte..
clark heste is an industrial engineer at lyones products. he would like to determine whether there are more units
What is the mean and standard deviation of the daytime waiting times? and what is the mean and standard deviation of the nighttime waiting times?
Identify a business research issue, problem, or opportunity facing your organization that can be examined using Hypothesis Testing. Describe the results of a hypothesis test on your selected research issue, problem, or opportunity.
In each sample, the proportion of people who voted in the last election is recorded. What can be concluded about the shape of the distribution of those sample proportions?
Goldsmith and Nadel (1969) have studied respiratory function following exposure to various levels of ozone for periods of 1 h. The subjects were four presumably healthy males employed by the California State Department of Public Health.
Run this same command several times to see how variable the reported pvalues are. How many possible treatment arrangements are there for this experiment?
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