"If a lunatic scribbles a jumble of mathematical symbols it does not follow that the writing means anything merely because to the inexpert eye it is indistinguishable from higher mathematics" - (Eric Temple Bell, 1883-1960)


Math History Tidbit:

Mary Dolciani Halloran (1923-1985): A great American mathematician, Mary Dolciani had a considerable impact on modern mathematics education. An inspiring teacher at Hunter College, she authored over thirty mathematics books. A specialist in number theory and modern algebra, she was active in many professional organizations and lectured to teachers and administrators throughout the United States.

Herkimer's Corner

Why does Herkimer think that spooks have very high phone bills?

Answer: They make lots of ghost-to-ghost calls.

Herky wants to know:

Why is it there there are people who can cook but don't, and people who can't cook but do?

Lots of people think they would be happy if they had all the money they wanted. Would they also be happy if they had all the money their creditors wanted?


Reading: STAT PACK, 15A-15D.

Cartoon Guide to Statistics (Pages 157-167)

Text (Yates): Section 12.2 (pages 679-682, 683-685...up to TI-83 techniques)

SUMMARY (pages 689)

Exercises: None, but study the examples in the readings.

Items for reflection:

You are working in Section 12.2.

Be aware that there are two standard errorformulas that are commonly used when comparing two sampleproportions. Make sure you use understand when it is appropriate touse each one.




The Practice of Statistics, by Yates, Moore, McCabe. New York,W.H. Freeman and Company, 1999. (;l 0-7167-3370-6)

Supplemental books:
The Cartoon Guide to Statistics, by Gonick and Smith. NewYork, HarperCollins Publishers, 1993. (ISBN 0-06-273102-5)
How to Lie with Statistics, by Darrell Huff. New York, W.W.Norton & Company, 1982 (ISBN 0-393-09426-X)

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