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A packaging company distributes quarter-pound beef patties to local fast-food restaurants. The restaurants demand the weights to be 4 plus or minus .02 ounces. If the patties are too small the customers will complain, if there will be too few of them in each box and the company will loose money. if the standard deviation of the patties is .009, what percentage of the patties will not meet the expectations?
What is your decision regarding the null hypothesis and interpret.
Stanford Binet IQ scores have a mean of 100 and a standard deviation of 15. Albert Einstein reportedly had an IQ of 160. Convert Einstein's IQ score to a z score.
Calculate power of test if researcher uses a sample of n = 16 individuals.
Explain whether the symmetry definition of probability is appropriate with respect to the outcomes in the sample space.
Let S be a random variable (not necessarily positive). Prove using Markov's inequality that for every p>0 and for every constant q,
Jane chooses every 20th person in the campus phone book to call for her interview study. Justin identifies important subgroups in the campus population
Construct a 95% confidence interval estimate for the population proportion of administrative professionals who prefer cash bonuses.
Use population distribution to determine expected juror frequencies. Test researcher's claim at a = 0.01.
Does this sample provide enough evidence to conclude that self-esteem scores for group-participation adolescents are significantly different from those of the general population? Use a two-tailed test with α = .01.
A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to repair a colour television is $90 with a standard deviation of $22. Monte's TV Sales and Service completed repairs on two sets this morning. The labor cost for the..
Using this test 80% of Down's syndrome cases can be identified at birth, while 5% of normals are detected as positive. a. What is the sensitivity and specificity of the test?
What is the minimum sample size required to assure that your sample proportion "p" will be within the required margin of error around the population proportion "p". Use the traditional methods for testing hypotheses and show the results of all ste..
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