question 1

A manager found errors in pages when he examined the quality of a printed book. As such he is interested in examining the relationship between the number of printing errors and the type size used. He selects three different books recentlyr printed by his company. each using a different type size. From each book he records the number of pages with printing errors and the number of error-free pages. The results are shown in Table 3 below. Table 3. Printing errors in each type. Egg Size A. B C Pages with Errors 23 1'? 41 Pa ges without Errors 241 183 2 ID Determine whether the data indicate, at {1.05 level of significance. a dependence between type size and printing errors. (15 marks)