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Amazon is one of the top leading online retailers today. One of the strategies that Amazon attributes their success and profitability to is from their suggestive add-on feature during checkout, which strategically recommends complementing products based on what the customer has in their shopping cart. Thus, Amazon wanted to know what percentage of their customers actually make an add-on purchase from Amazon's recommendations. From their findings, Amazon found that 30% of their customers who make a purchase also purchase an add-on product from that feature. Assuming this is true, use the binomial distribution table to determine the probability that in a random sample of 25 customers:
1.) 5 or more will make an add-on purchase due to Amazon's feature.
2.) Less than 10 will make an add-on purchase due to Amazon's feature.
3.) 6 people will make an add-on purchase due to Amazon's feature.
Assume that these two numbers are the averages of samples of 15 months each, and that both sample standard deviations are 50. Conduct a test for equality of means using the 0.05 level of significance.
Give an implementation of adjoin-set using the ordered representation. By analogy with element-of-set? show how to take advantage of the ordering to produce a procedure that requires on the average about half as many steps as with the unordered r..
millions of americans are subjected to drug testing in the workplace. the tests are not always reliable. a false
the following is a set of data for a population with n 10 7 5 11 8 3 6 2 1 9 8a. compute the population mean.b.
An issue that faces individuals investing for retirement is allocating assets among different investment choices. A study conducted 10 years ago showed that 65% of investors preferred stocks to real estate as an investment.
Based on your experience, what additional information would you recommend to the key decision maker in the simulation to solve the challenge given?
The manufacturer of a computer terminal reports in its advertising that the mean life of the terminal, under normal use, is 6 years, with a standard deviation of 1.4 years.
Of the adults in Jefferson County, 10% have had CPR training
This model is fit to the data using the method of least squares using statistical software, and the following parameter estimates and their standard errors are obtained.
Let us speek where the preceding data are representative of the entire sector of retail sales companiesSuppose the annual profits are more than 6.5 thousand $ every employee.
Suppose the probability that a federal income tax return conatins an arithemetic error is 0.2. If 10 federal income tax returns are selected at random,
one-year returns of 223 mutual funds are grouped below.one-year returns of mutual fundsclass return in
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