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Determine the probability that next year the total precipitation for New York State is less than 45.4 inches? Determine the probability that next year the total precipitation for New York State is les
Determine the standard score (z) such that the area above the mean and below z under the normal curve is 0.4714. Determine the standard score (z) such that the area above the mean and below z under th
Q scores in a certain population are normally distributed with mean of 96 and standard deviation of 14. (Provide your answers correct to four decimal places.)
Determine the area under the standard normal curve between z = 0.7 and z = 2.19, P(0.7 < z < 2.19). (Give your answer correct to four decimal places.)
Determine the area under the standard normal curve between -1.32 and the mean, P(-1.32 < z < 0.00). (Give your answer correct to four decimal places.)
A well-designed and safe workplace can contribute greatly to raising productivity. It is especially significant that workers not be asked to perform tasks, such as lifting, that exceed their capabil
A certain university has decided to introduce the employ of plus and minus with letter grades, as long as there is evidence that more than 45% of the faculty favor the change.
A random sample is selected from the population with mean ? = 99 and standard deviation ? = 10. For which of sample sizes would it be reasonable to think that the x sampling distribution is approxim
Assume that an operator handles 15 calls. Determine the probability that none of the 15 calls result in a reservation? Determine the probability that at least one call results in a reservation being m
We have to assign transportation from the eight warehouses to eight retail stores. Demands, costs and capacities are listed below. Solve the problem and report your transportation assignments, inclu
But, he needs to be capable to predict weekly sales to avoid stockouts that will ultimately lose sales. To help develop forecasting model, he records the number of snow tires sold weekly during the
An industry study was recently conducted in which sample correlation between units sold and marketing expenses was 0.57. The sample size for the study included 15 companies. Based on the sample resu
A random sample of n=9 scores is obtained from normal population with m=40 and s=6. Determine the probability that the sample mean will be greater than M=43?
Present an example of a business situation that you believe would lend itself to the use of a quantitative business model. Clearly explain how the model could be used in this situation.
An educational software company desires to compare the effectiveness of its computer animation for teaching about supply and demand curves with that of a textbook presentation.
A population of scores forms normal distribution with a mean of u=80 and a standard deviation of o=10. What proportion of the scores have values between 75 and 85?
The breaking strength of flimsy safety belts is known to be approximately normally distributed with true mean of 8100 pounds and true standard deviation of 105 pounds. IF a simple random sample of 4
What proportion of Americans drink more than the recommended 8 servings?
What is the maximum amount of money that you would be willing to pay for this investment? Why (please justify using mathematical/statistical tools)? What other information would be important to you
An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.6 years of age. If the standard deviation is supposed to be 4.5 years, determi
Determine the mean of this sampling distribution? (Give your answer correct to two decimal places.) televisions Determine the standard deviation of this sampling distribution? (Give your answer correc
Suppose that you are in a class of 32 students and it is supposed that approximately 10% of the population is left-handed. (Give your answers correct to three decimal places.) Calculate the probabil
Determine the mean of the number of ships that arrive at a harbor on a given day. Determine the standard deviation, ?, of the number of ships that arrive at a harbor on a given day.
Test the following function to find out whether it is a probability function. If it is not, then make it into a probability function. (Give your answers correct to one decimal place.)
A large charity receives monetary contributions of all sizes from individuals. Such donations from individuals average(u) 1480 per year. Suppose a normal distribution and a standard deviation( sigma