The following values are the number of chocolate chips found in three Chips Ahoy cookies*.  19   26   27 Find the sample standard deviation for the above three values by hand.  You may use a calculator, but not Excel. Round the final answer to the nearest hundredth (two numbers after the decimal point). Show all work. *A portion of real data found in your text.    

In each of the following examples, explain the error in reasoning. An advertisement claims to be able to reduce blood pressure by 250%.  Explain why this is not possible. A election pollster calls a potential voter and asks, “Do you plan to vote for Thompson, knowing that he is soft on crime?”  Explain why this question will likely not lead to an authentic answer. A clinic calls patients and asks them to rate their experience on a recent doctor visit.  Explain why the results of such calls will likely not represent all patients’ experiences.

Fill in the blank. If the variance for a data set is 16 inches squared, the standard deviation is _________ (include unit). Which of the following is more extreme: a height with a z-score of -1.96 or a weight with a z-score of 1.44?  Explain. You would like a simple random sample of candy bars from a local gas station.  Describe how you could get such a sample.

A drug that blocks a neurotransmitter’s action is called a(n):

Brain plasticity refers to:

Which early school of psychology used introspection to explore the mind’s structure?

Neurons transmit messages when stimulated by signals from:

True or False: Correlation proves causation.

Psychology is best defined as the science of:

The type of bone tissue indicated by the red arrow is ______ bone.