A student is interested in knowing if there is a relationship between the age of a child and the amount of time spent on homework. He asks 7 people their ages and the number of hours they spend on homework. Is there a relationship between age and the amount of time spent doing homework? Test at α = .05 level of significance. Age of Child (yrs) Time doing HW (hrs) 11 5 15 7 4 0 7 1 9 2 5 0 13 3

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.