Thursday, 4 February 2010

Test 1 is on Tuesday, 9 February 2010 and will include all topics from Sections 1.1, 1.4, 2.2, 2.3, 3.1, 3.2, 3.5. Also, you should be able to calculate z-score (Section 3.4) for any data, find a simple random sample (Section 1.2), and determine if a distribution is normally distributed using NRMHST on TI83/84 (http://stats.jjw3.com/math1431/ti83normHist.htm).

Today, we covered determining if a distribution is normally distributed, the 68-95-99.7 Rule (i.e., the Empirical Rule) from Section 3.2, and calculating the z-score (Section 3.4). You will need to remember the formulas for the z-score.

At this time, you should be able to complete the following assignments:

Section 1.1 #1-39 odd, 45, 49

Section 1.2 #21b, 25a

Section 1.4 #11-21 odd 23, 29

Section 2.2 #1-13 odd (except relative frequency histograms), 15, 17, 19-31 odd  (except relative frequency histograms)

Section 2.3 #1, 5, 8 – we will not discuss this section in class – you should be able to read the section and answer the questions

Section 3.1 #1-41 odd

Section 3.2 #1-41 odd

Section 3.4 #7 (less relative gestation = smaller z-score), 9 (relatively taller = larger z-score), 11

Section 3.5 #1, 3, 4, 5-11 odd

However, you need only to hand-in the following for HW1:

Section 1.1 #45, 49

Section 1.2 #21b, 25a

Section 1.4 #11-21 odd 23, 29

Section 2.2 #3, 9 (except relative frequency histograms), 31 (except relative frequency histograms)

Section 2.3 #1, 5, 8

Section 3.1 #21, 27, 35, 41

Section 3.2 #11, 13, 25, 33-41 odd

Section 3.4 #7, 9, 11

Section 3.5 #4, 11

HW1 is due at the beginning of class on Tuesday, 9 February 2010.

Lastly, I have posted the class “notes” for the first four chapters: http://stats.jjw3.com/math1431/math1431notes.htm.

As you prepare for the test, please email me if you have any questions.

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