In Problems 19–22, determine whether or not the histogram indicates that a normal distribution could be used as a model for the variable.
Birth Weights The relative frequency histogram represents the birth weights (in grams) of babies whose term was 36 weeks.
Step 1 of 5) In Problems 19–22, determine whether or not the histogram indicates that a normal distribution could be used as a model for the variable. Birth Weights The relative frequency histogram represents the birth weights (in grams) of babies whose term was 36 weeks. Least-Squares Regression Problem A family doctor is interested in examining the relationship between a patient’s age and total cholesterol (in mg/dL). He randomly selects 14 of his female patients and obtains the data presented in Table 1. The data are based on results obtained from the National Center for Health Statistics. Draw a scatter diagram, compute the correlation coefficient, find the least-squares regression equation, and determine the coefficient of determination. Approach We will use a TI-84 Plus C graphing calculator. Solution Figure 1 displays the scatter diagram. Figure 2 displays the output.
