According to a 2009 reader's digest article, people throw away approximately 13% of what they buy at the grocery store. assume this is the true proportion and you plan to randomly survey 166 grocery shoppers to investigate their behavior. what is the probability that the sample proportion is between 0.09 and 0.13?

Alyssa works for an engineering firm that has been hired to design and supervise the construction of a highway bridge over a major river. the bridge will be a unique design, incorporating complex designs that will likely never be duplicated. how should alyssa deal with designing and overseeing the building of the bridge?

One investigating company tracked all credit card purchase during 2012 and measured two variables: (1) the type of credit card used (visa, mastercard, american express, or discover), and (2) the amount (in dollars) of each purchase. identify the level of each variable measured.

Which of the following statements is true about financial planning