The nursing instructor wishes to see whether a student's grade point average and age are related to the student's score on the state board nursing examination. She selects five students and obtains the following data. State board Student GPA.x, Age x, score y 3.2 2.7 2.5 22 27 24 550 570 525 3.4 28 23 670 2.2 490 The multiple regression equation obtained from the data is y' = -44.81 + 87.64x, + 14.533x, From this multiple regression equation predict state board score of a student who has a GPA of 3.0 and is 25 years old.

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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.