Andy purchased a number of books from Amazon. com, and he learned to trust the recommendations made to him. More than once he was pleasantly surprised at thebooks and authors he discovered this way. In this case, Amazon. com was creating value for Andy through.

A. repeat business.
B. rapid delivery.
C. expanded market presence.
D. personalized offerings.
E. interactive offerings.

Juniper company uses a perpetual inventory system and the gross method of accounting for purchases. the company purchased $9,750 of merchandise on august 7 with terms 1/10, n/30. on august 11, it returned $1,500 worth of merchandise. on august 26, it paid the full amount due. the correct journal entry to record the merchandise return on august 11 is:

The wall street journal reported that walmart stores inc. is planning to lay off 2,300 employees at its sam's club warehouse unit. approximately half of the layoffs will be hourly employees (the wall street journal, january 25-26, 2014). suppose the following data represent the percentage of hourly employees laid off for 15 sam's club stores. 55 56 44 43 44 56 60 62 57 45 36 38 50 69 65 (a) compute the mean and median percentage of hourly employees being laid off at these stores. (b) compute the first and third quartiles. (c) compute the range and interquartile range. (d) compute the variance and standard deviation. (e) do the data contain any outliers? (f) based on the sample data, does it appear that walmart is meeting its goal for reducing the number of hourly employees?

True or false: a fitted model with more predictors will necessarily have a lower training set error than a model with fewer predictors.