A survey of 40 students at a local college asks, "Where do you buy the majority of your books?" The responses fell into three categories: "at the campus bookstore," "on the Internet," and "other." The results follow. Use Excel to estimate the proportion of all of the college students who buy their books on the Internet.
Definitions:
Q5: In order to test to see if
Q13: If A and B are independent events
Q34: The process of allocating the total sum
Q56: The standard deviation of a standard normal
Q77: If we are interested in testing whether
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Q154: Refer to Exhibit 10-11. The mean square