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Plumbing Inc. has been selling plumbing supplies for the last 20 years. The owner, Joe, decides that it is time to diversify by adding gardening tools to the products.
Having had success using customer data to build predictive models to guide direct mail campaigns for special plumbing offers, he considers that data mining could help him to identify a subset of customers who should be good prospects for his new set of products.
Is Joe ready to solve this as a supervised learning problem
The number of cars passing over a certain bridge between 11pm and midnight has a Poisson density with lambda = 4. In what proportion of nights would you expect exactly one car to pass over the bridge during this time?
A sample of PVC pipes coming off a production line were tested for pipe diameter size. The statistical results (in millimeters) were:
Evaluate the strength of the relationship by computing the coefficient of determination.
There are different types of forecasting models that can be used in business research. Each model is suitable for a type of historical demand data. Some data may have a trend, may be without a trend, or may be seasonal.
the following observations show the number of traffic violations given for speeding on the one interstate highway going
The table shows the results of a survey im which 180 family were asked if they own a home and if they will be purchasing a new vehicle this year.
Then test to see whether it considerably varies from 0 [use alpha = 5%]. Don't forget to identify the null and alternative hypotheses.
a bus passes by a certain street corner every morning around 900 a.m. let x be the difference in minutes between the
the quality control manager at a light globe factory needs to estimate the mean life of a large shipment of
The manager of Sandy Corporation wants to determine whether or not the type of work schedule for her employees has any effect on their productivity. She has selected 15 production employees at random and then randomly assigned 5 employees to each ..
what is the probability that there are exactly 6 girls among the first 10 and exactly 12 girls among the first 19
a regression model with one independent variable x1 resulted in an sse of 50. when a second independent variable x2 was
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