According to a  survey, high school girls average 100 text messages daily (The Boston Globe, April 21, 2010). Assume the population standard deviation is 20 text messages. Suppose a random sample of 50 high school girls is taken.What is the probability that the sample mean is less than 95? 

A study by Allstate Insurance Co. finds that 82% of teenagers have used cell phones while driving (the Wall Street Journal, May 5, 2010). Suppose a random sample of 100 teen drivers is taken.What is the probability that the sample proportion is less than .80?

Last year, the typical college student graduated with $27,300 in debt (The Boston Globe, May 27, 2012). Let debt among recent college graduates be normally distributed with a standard deviation of $6,000.What is the probability that the average debt of two recent college graduates is more than $28,000? 

Trader Joe’s is a privately held chain of specialty grocery stores in the United States. Starting out as a small chair of convenience stores, it has expanded to over 340 stores as of June 2010 (http://Tradejoe.com). It has developed a reputation as a unique grocery store selling products such as gourmet foods, beer and wine, bread, nuts, cereal, and coffee. On of their best-selling nuts is Raw California Almonds, which are prices at $4.49 for 16 ounces. Since it is impossible to pack exactly 16 ounces in each packet, a researcher has determined that the weight of almonds in each packet is normally distributed with a mean of 16.01 ounces and a standard deviation of 0.08 ounces. True or False:  The sampling distribution of the sample mean is approximately normal based on any given sample size.

What is the approximate distance (in Kilometers) from the red dot on the Big Island of Hawaii (labeled Mauna Loa Volcano) to the red dot on the Island of Kauai (labeled 5.1 Myr)?    

Which of the following ions is paramagnetic?

Sumer was located in

The stability and continuity of Egyptian history rested on all of the following, EXCEPT

One of the most important Hebrew contributions to Western thought that emerged during the stage of monolatry was

Match the description of the character with the character