Questions from Business Statistics

Q: Perhaps fans are just more interested in teams that win. The

Perhaps fans are just more interested in teams that win. The displays below are based on American League teams for the 2016 season. (Data in Attendance 2016) 1. Do winning teams generally enjoy greate...

Q: Leah is flying from Boston to Denver with a connection in Chicago

Leah is flying from Boston to Denver with a connection in Chicago. The probability her first flight leaves on time is 0.15. If the flight is on time, the probability that her luggage will make the con...

Q: A private college report contains these statistics: 70% of

A private college report contains these statistics: 70% of incoming freshmen attended public schools. 75% of public school students who enroll as freshmen eventually graduate. 90% of other freshmen ev...

Q: Remember Leah (Exercise 47)? Suppose you pick her up at

Remember Leah (Exercise 47)? Suppose you pick her up at the Denver airport, and her luggage is not there. What is the probability that Leah first flight was delayed?

Q: What percent of students who graduate from the college in Exercise 48

What percent of students who graduate from the college in Exercise 48 attended a public high school?

Q: A company records indicate that on any given day about 1%

A company records indicate that on any given day about 1% of their day-shift employees and 2% of the night-shift employees will miss work. Sixty percent of the employees work the day shift. 1. Is abse...

Q: Pew Internet reported in January of 2014 that 32% of U

Pew Internet reported in January of 2014 that 32% of U.S. adults own at least one e-reader, and that 28% of U.S. adults read at least one e-book in the previous year (and thus, presumably, owned an e-...

Q: At the company described in Exercise 51, what percent of the

At the company described in Exercise 51, what percent of the absent employees are on the night shift?

Q: Given the e-reader data presented in Exercise 52:

Given the e-reader data presented in Exercise 52: 1. If a randomly selected U.S. adult has an e-reader, what is the probability that he or she hasn’t read an e-book in the past year? 2. Is it more or...

Q: Police often set up sobriety check points roadblocks where drivers are asked

Police often set up sobriety check points roadblocks where drivers are asked a few brief questions to allow the officer to judge whether or not the person may have been drinking. If the officer does n...