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Suppose a manufacturing company makes a certain item. The time to produce each item is normally distributed around a mean of 27 minutes with a standard deviation of 2.5 minutes. Thus, the population of production times is normal in shape. Find the mean and standard deviation of the sample.
question an electronics company is about to launch a new product. if the serial number for each piece produced has
Ten automobiles were driven on a measured test track - once with standard gasoline with no additive and once with an additive supposed to increase miles per gallon (mpg). The results are given below:
a random sample of 100 credit sales in a department store showed an average sale of 120.00. from past data it is known
How does multilinear regression analysis apply to your profession? Specify the dependent value and the set of predictors. Where would you get the data?
Consider the trash bag problem. Suppose that an independent laboratory has tested trash bags and has found that no 30-gallon bags that are currently on the market have a mean breaking strength of 50 pounds or more.
the most accurate statement about research articles in psychology is thata normal curves and probabilities are almost
given that a normal distribution withnbspmu103 andnbspsigma20 given that you select a sample of n25a. what is the
A circus clown at the top of a 60-foot platform is playing catch with another clown on the ground. The clown on the platform drops a ball at the same time as the one on the ground tosses a ball upward at 80 ft/sec.
Show that if in the Law of Large Numbers we omit the assumption that all the X have the same mean and replace the m in the conclusion by [E(X1)+...+E(Xn)]/n, the law remains valid.
North Manufacturing has a demand for 1,000 pumps each year
a student parks his car illegally on campus for a period of exactly one hour. parking enforcement personnel check the
Five homes are selected at random: What is the probability none of the six selected homes have a security system? (Round your answer to 3 decimal places.)
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