Math 151 , Spring 2006, Day 11 Wed Feb. 22 Hit reload... After class

--Exam 1  Friday Feb 24, Day 12, in class, closed book.   Bring a simple calculator. I will give you copies of the Normal table.  You may stay late into the lunch hour if you like. If you want extra time, and can't stay into the lunch hour, you can start early (after 10): make arrangements with me by Wednesday, please. (Sign up now, or if none of the above work, talk to me.).
Covers (For sure) Part I:through p.112  Normal?  thru HW day 10: Using z-table. Understanding  forward and "backward" normal problems with raw data like p.90..Percentiles  I, II, and reading results from a technology tool, but NOT going raw <-->percentile through the z-table. Definitely not p. 92-3 questions 2,3.  You will need to read SPSS output, but not tell how to produce any. You will need to calculate "by hand" a standard deviation for four numbers. (As well as medians, quartiles, etc.)   Problems like HW + some true-false or multiple choice types.
 Sample exam  Check this link for modifications for this year. Solutions outside my door & on reserve.
Fay's review session:  Thursday, 23 February, 7-8 pm (unless you notify her that you will be there later) in the Math Clinic.
"See you all there.  Make sure to go through the practice exam."

Day 11(Wed. Feb. 22): Reading: Finish D&V Ch6 pp. 86-98.  (Questions 2&3 p.92-3 are optional. Normal Prob. Plots p. 94-95 is  Optional, but don't miss What Can Go Wrong, p95 bottom).  AS Ch. 6, in order. Note AS 6-4 ¶1, Normal table does UPPER tail.  Almost all normal tables do LOWER tail.
Then: Quick Review p.103.  Ahead, D&V Ch7 Scatterplots, first thru 117 (AS7-1&2), then Correlation, the rest. (AS7-3&4)
Technology:http://www.whfreeman.com/scc/ , Statistical Applets, Normal Density.  Uncheck the 2-tail box for most uses.  OR ActivStats Normal Density Tool : for best setup Use AS30-2 "Normal distribution based Confidence Intervals tool" CAUTION: Don't hit the Enter key! It closes the tool-box!
Hand in (All D&V) Nothing to hand in for Monday   Start reading Ch. 7.
Raw data problems. .  "Backward" parts  are marked with *. 
You have done these with a technology tool (see above). Now do them with table Z also. 
p.102,  25 Cholesterol  a, b, c,  d*, e* 
26 Tires  a, b, c,  d*, e* 
28 Body Temperatures: a, b, c*  Also:  I have a theory as to where the "wrong" number 98.6F came from.
 Early work on temperatures all took place in Europe. Convert 98.6F and 98.2F to Celsius (subtract 32, and divide by 1.8).  What's my theory?

Read, 
 to discuss 		 Optional  (more practice)
If you feel at all shaky about graphing or using straight lines (slopes, intercepts) be sure to do Linear Equations exercise
 and Line Equations, Activstats 8-1, activities 3&4
(in preparation for Ch.8)
 Normal Probability Practice handout.
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with table Z:
p.102, 27 Kindergarten a,b*,c*
 <>p.109, 25 BeQuick a,b,c,d,e*,f*
Review exercises p. 104-112  These are good to look at and decide how to do, as exam prep.  Here's a list of problems NOT to try: 16a, 33, 34e,f(vague), 37,38.
  Homework questions?  Day 9 
General exam questions?

Start here Monday
Handout: Normal probability practice  (Parts are here)
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<>Using z tables to go between raw values and proportions (percentiles)  See Day 10
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