Fritz Guided2 - STAT 200 Guided Exercise 2 Key Topics For...

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Understanding Statistics in the Behavioral Sciences
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Chapter 4 / Exercise 14
Understanding Statistics in the Behavioral Sciences
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STAT 200 Guided Exercise 2 For On-Line Students, be sure to: Submit your answers in a Word file to Sakai at the same place you downloaded the file Remember you can paste any Excel or JMP output into a Word File (use Paste Special for best results). Put your name and the Assignment # on the file name: e.g. Ilvento Guided2.doc Key Topics Measures of Central Tendency Stem & Leaf Plot and describing distributions Measures of Variability Answer as completely as you can and show your work. Then upload the file via Sakai to get credit. 1. Let’s finish up the Academy Award winners for best actor (and actress) since 1996 that was given in Assignment 1, now that we have command of both central tendency and variability. Each year the Academy of Motion Picture Arts and Sciences picks a best actor and best actress in a film. The data for males and females is given below (the sample size, n =17). The sum of their age is also given. YEAR ACTOR MALE BORN MALE AGE ACTRESS FEMALE BORN FEMALE AGE 1996 Geoffrey Rush 1951 45 Frances McDormand 1957 39 1997 Jack Nicholson 1937 60 Helen Hunt 1963 34 1998 Roberto Benigni 1952 46 Gwyneth Paltrow 1972 26 1999 Kevin Spacey 1959 40 Hilary Swank 1974 25 2000 Russell Crowe 1964 36 Julia Roberts 1967 33 2001 Denzel Washington 1954 47 Halle Berry 1966 35 2002 Adrien Brody 1973 29 Nicole Kidman 1967 35 2003 Sean Penn 1960 43 Charlize Theron 1975 28 2004 Jamie Foxx 1967 37 Hilary Swank 1974 30 2005 Philip Seymour Hoffman 1967 38 Reese Witherspoon 1976 29 2006 Forest Whitiker 1961 45 Helen Mirren 1945 61 2007 Daniel Day-Lewis 1957 50 Marion Cotillard 1975 32 2008 Sean Penn 1960 48 Kate Winslet 1975 33 2009 Jeff Bridges 1949 60 Sandra Bullock 1964 45 2010 Colin Firth 1960 50 Natalie Portman 1981 29 2011 Jean Dujardin 1972 39 Meryl Streep 1949 62 2012 Daniel Day-Lewis 1957 55 Jennifer Lawrence 1990 22 Sum X 768 Sum X 598 Sum X-squared 35824 Sum X-squared 23070 a. Here is the Stem and Leaf plot for each group to compare the distributions. Stem and Leaf Plot of Actor’s Age Males Females Stem Leaf Stem Leaf 6 0 0 6 1 2 5 0 0 5 5 4 0 3 5 5 6 7 8 4 5 3 6 7 8 9 3 0 2 3 3 4 5 5 9 2 9 2 2 5 6 8 9 9 6|0 represents 60 6|1 represents 61
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Understanding Statistics in the Behavioral Sciences
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Chapter 4 / Exercise 14
Understanding Statistics in the Behavioral Sciences
Pagano
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