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V A researcher notes that, in a certain region, a disproportionate number of software millionaires were born around the year 1955. Is this a coincidence,
V A researcher notes that, in a certain region, a disproportionate number of software millionaires were born around the year 1955. Is this a coincidence, or does birth year matter when gauging whether a software founder will be successful? The researcher investigated this question by analyzing the data shown in the accompanying table. Complete parts a through c below. Click the icon to view the data table. result. a. Find the coefficient of determination for the simple linear regression model relating number (y) of software millionaire birthdays in a decade to total number (x) of births in the region. Interpret the The coefficient of determination is (Round to three decimal places as needed.) This value indicates that % of the in the number of software millionaire birthdays is explained by the relationship with the total number of births in the region. (Round to one decimal place as needed.) b. Find the coefficient of determination for the simple linear regression model relating number (y) of software millionaire birthdays in a decade to number (x) of CEO birthdays. Interpret the result. The coefficient of determination is (Round to three decimal places as needed.) This value indicates that % of the in number of software millionaire birthdays is explained by the relationship with the number of CEO birthdays. (Round to one decimal place as needed.) c. The consulting statistician argued that the software industry appears to be no different from any other industry with respect to producing millionaires in a decade. Do you agree? Explain. because the coefficient of correlation r = indicates that there is relationship between the number of software millionaire birthdays and the number of CEO birthdays. That is, as the number of software millionaire birthdays increases, the number of CEO birthdays Therefore, the software industry unique with respect to producing millionaires in a decade. (Round to three decimal places as needed.). . . Find the co cade to total number (x) X sult. Data Table e coefficien ound to thre is value ind Total Births in Number of Software Number of CEO Birthdays (in a relationship with the ound to one Decade Region (millions) Millionaire Birthdays random sample of 70 companies) 1920 28.029 Find the co cade to number (x) of C 1930 24.758 e coefficien 1940 31.231 ound to thre 1950 40.682 1960 38.143 is value ind relationship with the n 1970 33.559 ound to one The consult g millionaires in a dec becaus Print Done software millionaire bi thdays. Tha the software industr oducing mill ound to thre
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