The following data on the relationship between degree of exposure to 242 Cm alpha radiation particles (x)

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The following data on the relationship between degree of exposure to 242Cm alpha radiation particles (x) and the percentage of exposed cells without aberrations (y) appeared in the paper “Chromosome Aberrations Induced in Human Lymphocytes by DT Neutrons” (Radiation Research [1984]: 561–573):

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Summary quantities are

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a. Obtain the equation of the least-squares line.

b. Calculate SSResid and SSTo.

c. What percentage of observed variation in y can be explained by the approximate linear relationship between the two variables?

d. Calculate and interpret the value of se.

e. Using just the results of Parts (a) and (c), what is the value of Pearson’s sample correlation coefficient?

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Introduction To Statistics And Data Analysis

ISBN: 9780495118732

3rd Edition

Authors: Roxy Peck, Chris Olsen, Jay L. Devore

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