GB 513 Course Great Wisdom / tutorialrank.com GB 513 Course Great Wisdom / tutorialrank.com | Page 5
monthly household cell phone bills are normally distributed with a standard deviation of $ 11.35 .
a . What is the probability that a randomly selected monthly cell phone bill is more than $ 100 ?
b . What is the probability that a randomly selected monthly cell phone bill is between $ 60 and $ 83 ? c . What is the probability that a randomly selected monthly cell phone bill is between $ 80 and $ 90 ? d . What is the probability that a randomly selected monthly cell phone bill is no more than $ 55 ?
Question 3
A Travel Weekly International Air Transport Association survey asked business travelers about the purpose for their most recent business trip . 19 % responded that it was for an internal company visit . Suppose 950 business travelers are randomly selected .
a . What is the probability that more than 25 % of the business travelers say that the reason for their most recent business trip was an internal company visit ?
b . What is the probability that between 15 % and 20 % of the business travelers say that the reason for their most recent business trip was an internal company visit ?
monthly household cell phone bills are normally distributed with a standard deviation of $ 11.35 .
a . What is the probability that a randomly selected monthly cell phone bill is more than $ 100 ?
b . What is the probability that a randomly selected monthly cell phone bill is between $ 60 and $ 83 ? c . What is the probability that a randomly selected monthly cell phone bill is between $ 80 and $ 90 ? d . What is the probability that a randomly selected monthly cell phone bill is no more than $ 55 ?
Question 3
A Travel Weekly International Air Transport Association survey asked business travelers about the purpose for their most recent business trip . 19 % responded that it was for an internal company visit . Suppose 950 business travelers are randomly selected .
a . What is the probability that more than 25 % of the business travelers say that the reason for their most recent business trip was an internal company visit ?
b . What is the probability that between 15 % and 20 % of the business travelers say that the reason for their most recent business trip was an internal company visit ?