{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Stat 231 HW Assignments Fall 2011

# Stat 231 HW Assignments Fall 2011 - Stat 231 Homework...

This preview shows pages 1–3. Sign up to view the full content.

1 Stat 231 Homework Assignments/Fall 2011 HW1/ Due 8/25/11 1. Do Devore Chapter 1 Problem 42. (It's possible to use algebra to prove the relationships you are supposed to find here, but it will be sufficient for this exercise to use the numbers 2,3,3,4,5 as values of x , and try out your conjecture with c first 3 and then 7.) 2. Do Devore Chapter 1 Problem 51 "by hand." That is, do the arithmetic required to compute the sample variance and sample standard deviation. Check your computations using a good scientific calculator (you absolutely must know how to compute means and standard deviations using your calculator). Be sure to write correct units for 2 s and s . 3. Consider the data of Devore Chapter 1 Problem 75. Do the arithmetic required to compute the three sample means and three sample standard deviations. Check your computations using a good scientific calculator (again, you need to know how to compute means and standard deviations using your calculator). Be sure to write correct units for the x and s values. 4. Load the data from Devore's Example 1.10 into JMP . Use the Analyze>Distribution function to get, print out, and turn in with this homework a JMP report that includes a) a histogram matching the one in the text as closely as is possible (run the data axis from 1 to 19 and use increments of 2), b) a quantile box plot, c) a stem and leaf plot, and d) the sample mean and standard deviation for these data. 5. Load the data from Devore Chapter 1 Problem 75 into JMP . If necessary, use the Tables>Stack function to get the data values into a single column and the labels into another one. Then make, print out, and turn in with this homework the comparative (quantile) box plots Devore asks for in two different ways. a) Use the Analyze>Distribution function plotting Data by Label and then using horizontal layouts to stack the JMP reports over one another. b) Use the Graph>Graph Builder function, plotting Data on the "y" axis and Label on the "x" axis, and then adding the box plots. HW2/Due 9/1/11 Do Devore Chapter 2 Problems 1,3,4,8,11,12,14,15,19,20,26,47,48,52,53,63,67.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document