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1. A manufacturing intraocular lens is in a process of verifying a polishing machine. The polisher will be accepted only if the percentage of polished lenses containing surface defects does not exceed 1.5%.They took a sample of 300 lenses and found 5 lenses that had surface defect. Formulate a test appropriate for verification of polishing machine using α = 0.05. Please provide the steps of the formulated test. Problems are not to be resolved with statistic software.
2. 15 boxes of 350 grams corn flakes sodium content were determined. Data (in milligrams) are as follows: 128.77, 131.15, 129.65, 132.33, 130.54, 130.72, 131.67, 133.02, 127.98, 130.12, 129.37, 129.91, 130.19, 128.64 and 131.62.There is enough evidence, at a significance level of 10%, to conclude that this brand of corn flakes average sodium content is 130 milligrams? Please provide the steps. Problems are not to be resolved with statistic software.
If the population meanis to be estimated to within two days, with 95% confidence, how many outside salespeople should be sample.
There is evidence that the two processes yield different average errors. Assume that the population standard deviations are equal. What is the degrees of freedom?
question laparoscopic surgery is a procedure for threading a small flexible tube within a patients body to explore or
consider a company that selects employees for random drug tests. the company uses a computer to randomly select
Using the sample obtained, draw a histogram and calculate mean and variance for 1000 sampled values for random variable Y = X2.
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown in the following table.
Simplify each expression-Perimeter of a rectangle. The perimeter of a rectangular backyard is 6x+6 yards. If the width is x yards, find a binomial that represents the length.
Finding the probability of each event in a group of events of different possibility
a skeptical paranormal researcher claims that the porportion of americans that have seen a ufo p is less than 4 in
Find the probability that the number who considers themselves baseball fans is (a) exactly eight (b)at least eight and (c) less than eight. If possible use technology to find the probabilities.
by the central limit theorem the sampling distribution of x1 - x2 isa. approximately normal for small samplesb.
perform the two anova tests. include the anova table and an explanation of your results. be sure to write full
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