"Mathematicians are like lovers...Grant a mathematician the least principle, and he will draw from it a consequence which you must also grant him, and from this consequence another." - (Fontenelle, 1657-1757)
I guarantee you that research on the number 0 will yield some extremely interesting historical information. |
Answer: He wanted to have his lights up in names.
If a pig loses its voice, is it disgruntled? If lawyers are disbarred and clergymen are defrocked, can electricians be delighted, musicians denoted, cowboys deranged, tree surgeons debarked, and dry cleaners depressed? |

Reading: Section 11.1, pages 598-602 (up to TI-83 techniques) Exercises: 11.13 (page 604). Enter data into calculator or spreadsheet, get necessary statistics, and respond to (a), (b), and (c). Check the "shape" of the differences. (See rules for t-test below). |

**You are working in section 11.1.**

**Rules for using the t-test:**

- The assumption of an SRS is important.
- Ideally, the sample comes from a normal population. However, many interesting populations are not normal. Here are situations when the t-test can be used when a sample is taking from a population that might not be normal.
- For sample sizes

__less than 15__, the t-test can be used if the data are close to normal. Do not use t-procedures if the data are clearly nonnormal or if outliers are present.For sample sizes

__15 or greater__, t-procedures can be safely used except in the presence of outliers or strong skewness.For samples sizes

__40 or greater__, t-procedures can be used even if the data is heavily skewed.

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**Text:***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)