Assignment-1 Advanced/Statistical Methods: STAT 4303/5390 Total # of pages: ame:

Question

Assignment-1 Advanced/Statistical Methods: STAT 4303/5390 Total # of pages: ame: K-ID: aa.aa5 Data generating code (DGC): It consists of first non-zero digit and the last digit of your K-ID. Please write down your DGC here: DGC 5 Exercise 1.1. Following is a list of the number of hazardous waste (HW) sites in each of the 50 states of the United States as of April 1995. The data are taken from The World Almanac and Book of Facts 1996 (World Almanac Books, Mahwah, NJ, 1996). The list has been sorted into numeric order. 13113 | 14 | 15 | 16 | 17 | 17 | 18 | 18 19 | 20 | 22 | 23 | 24 | 2529 30 331.37 38 | 39 | 40 | 55 | 58·7718196-1-102L107 Create a new variable: Scrambled Hazardous waste (SHW) = Hw + DGC. 65 |G6165 |66 |6 |56 |67| 3 122 126 17 12 Instructor: Sarjinder Singh

Explanation / Answer

we shall do this using the open source statistical package R ,

a<- c(32,35,37,39,42,47,51,58,60,62,64,68,75)
b<- c(25,40,48,55,56,58,60,65,70,76,80,91,99)
dgc <- 45
sa <- a + dgc-10
sb <- b+ 2*dgc-10
stem(sa)
stem(sb)

The stemplots are

> stem(sa)

The decimal point is 1 digit(s) to the right of the |

6 | 7
7 | 0247
8 | 26
9 | 3579
10 | 3
11 | 0

> stem(sb)

The decimal point is 1 digit(s) to the right of the |

10 | 5
12 | 08568
14 | 0506
16 | 019

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