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Publishes data on the hourly compensation for production workers in manufacturing sector of the economy. The latest figures published by this government agency show that the average hourly wage for a production worker in manufacturing is $14.55. To examine the consistency of this figure, a random sample of 25 production workers in manufacturing from the across the county is selected and based on this sample it has been determined that the standard deviation of hourly wages for such workers is $1.12. Use this information to develop a 95% confidence interval to estimate the production variance for the hourly wages of production workers in U.S. What is the value of upper limit of this confidence interval?
Based on the result, does there to be an overall perception of 1 minute that is reasonably accurate?
Find a 95% confidence interval for the percentage of girls and women in Taiwan who had antibodies at that time.
Detremine the mean, standard deviation, and variance for this frequency distribution.
Determine the probability that no female are hired. Determine the mean and standard deviation of X.
What is the probability that both defective lights will be found within three trials?
Define the rejection region. State the statistical decision.
An anatomy teacher hypothesizes that the final grades in her class are distributed as 10% A's, 23% B's, 45% C's, 14% D's, and 8% F's. At the end of the semester, she has the following grades.
A monthly budget of $100,000 is available for both advertising and purchase of the fragrances. Develop and solve a linear optimization model to determine how much of each type of perfume should be produced to maximize the net profit.
State the alternate hypothesis for this study? What critical value should be used to determine the rejection region? Use the 1 proportion Z-test.
If we repeated this procedure many, many times, only 5 percent of the 95 percent confidence intervals would fail to include the mean Math SAT score of the population of all students at this college.
It is believed that population standard deviation is 15 days. If test is conducted using 0.05 level of significance, what conclusion must be reached?
To test whether the significant difference between two sample variance using F-tests.
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