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A machine at Katz Steel Corporation makes 4-inch-long nails. The probability distribution of the lengths of these nails is approximately normal with a mean of 4 inches and a standard deviation of 0.10 inch. The quality control inspector takes a sample of 36 nails once a week and calculates the mean length of these nails. If the mean of this sample is either less than 3.96 inches or greater than 4.04 inches, the inspector concludes that the machine needs an adjustment. What is the probability that based on a sample of 36 nails, the inspector will conclude that the machine needs an adjustment?
Round your answer to 4 decimal places.
suppose x the number of flaws in a roll of polyethylene insulated cable follows a poisson process where lambda is 1.1
1. Explain how a correlational study differs from a correlational analysis.
When sampling is for a population proportion from a population with actual proportion p = 0.5, using a sample of size n = 120, what is the standard deviation of our estimator P^?
tv advertising agencies face growing challenges in reaching audience members because viewing tv programs via digital
If the distribution of route lengths is normal, find a 95% confidence interval for the true mean route length of newspaper carriers who use their automobiles.
a business major wants to determine whether the variation in advertising costs of hair salons is different from the
What is the probability that among 10 true hypertensives at least 50% are being treated appropriately and are complying with this treatment?
At a fast food resturant, the expected number of customers who will spend atleast $10 during lunch period from 12:00 to 2:00 is 221 and the variance is 33.15. Assume this is a binomial model.
Computing the mean value for the given data - What is the new mean for the class and frequency distribution graph, what type of graph should be used
Using Coefficient of Variation determine in which year do the ages show a more dispersed distribution? Show your complete work and support your answer.
Valuation of an MNC Yahoo! has expanded its business by establishing portals in numerous countries, including Argentina, Australia, China, Germany, Ireland, Japan, and the United Kingdom.
What is the difference between this regression-predicted value and the actual price at the end of December 2000? What is your analysis of linear regression in stock-prediction scenarios?
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