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Bob Billy is an operations analyst for Dollar-Does-It stores based in Iva, SC. He is currently studying the order and stocking policies for top-selling toy. His analysis has indicated an almost constant lead time of 10 days. Bob calculated that the daily demand was normally distributed with a mean of 1,250 toys per day with a standard deviation (Ï?d) of 375 toys per day.
a. Compute the order point for the toy if the service level is specified at 90% during the lead time.
b. How much safety stock would Bob Billy carry?
The simple coefficient of determination is the proportion of total variation explained by the regression line.
If sample mean is M=44. Is this sufficient to demonstrate significant effect? Again assume a Two-tailed test with a=0.05.
High levels of cockpit noise in an aircraft can damage the hearing of pilots who are exposed to this hazard for many hours
A normal distribution with a mean of 55 and a standard deviation of 6 is evaluated to solve a business problem.
Once again, suppose that the standard deviation of the average or median is $5.00. Which is the probability that the average or median of the sample is greater than $22.50 but less than $25.00?
Do these simulated data provide evidence for us to conclude that a difference in the spinal canal cross sectional area exist between the population of subjects with disc hernination and a population of those who do not have disc hernation?
Chi-square test for independent of attributes - A random sample of students is interviewed to determine if there is an association between class and attitude toward corporations?
Speed of cars travelling on I-85 in Gaston County is normally distributed with average speed (µ) of 66 MPH and standard deviation (σ) of 8 MPH.
This problem has to do with graphical plotting and computation for certain distribution. Please mention a detailed response to the questions listed with appropriate graphical and statistical data representation(s).
How does a researcher determine the meaning of a score on a norm-referenced test such as an IQ test? Why are raw scores transformed to standardized scores, such as z-scores, in order to interpret those raw scores?
Katie is studying aggression among adolescent girls. She believes that there is a relationship between the level of interaction a girl has with her mother and her level of aggression.
what is the probability that at least 8 of the words on the test are words that the student knows?
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