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Zipper Products, Inc., produces granola cereal, granola bars, and other natural food products. Its natural granola cereal is sampled to ensure proper weight. Each sample contains eight boxes of cereal. The overall average for the samples is 17 ounces. The range is only 0.5 ounce. Determine the upper and lower control-chart limits for averages for the boxes of cereal.
The standard screening test for Down's Syndrome is based on combination of maternal age and the level of serum alpha-fetoprotein. Using this test 80% of Down's syndrome cases can be identified, while 5 % of normals are detected as positive.
If the population standard deviation is σ = 20 is the 6 point effect large enough to be statistically significant? Use the two - tailed test with α = .05
At a .10 level of significance, use Stat Tools (or Excel) to test the sponsors' hypothesis. State the null and the alternative hypotheses and the decision rule. Finally, discuss your findings.
During the war with Iraq in 1991 the Terraco Motor Company produced a lightweight, all terrain vehicle code named "J99 Terra" for the military. The company is now planning to sell the Terra to the public.
A government survey conducted to estimate the mean price of houses in a metropolitan area is designed to have a margin of error of $10,000.
Use the normal approximation to estimate the probability of at least one disaster in 25 missions.
Can you please describe what I need to do to complete this? I do not understand how to plot the figures within the spreadsheet or calculate them.
Estimate a multiple regression model using revenue as your dependent variable. For independent variables, include population, average income, screens, theatre age, and dummy variables for mall and strip mall.
In a sample of 12 bank tellers at a local branch office, the 7 tellers who have completed the advanced training program offered by the bank have a lower average error rate in the processing of transactions than the remaining 5 tellers.
Make your calculation supposing a two-sided two-sample t-test with a type I error (alpha) of 0.056
Fitting of multiple linear regression equation - Give a list of the model assumptions for a regression model.
Frequently, tests tha yeild abnormal results are repeated for confirmation. What is the probability that for a normal person a test will be at least 1.5 times as high as the upper limit of normal on two seperate occasions.
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