In the article “The Human Vomeronasal/ Organ. Part II: Prenatal Development”, T. Smith and K. Bhatnagar examined the controversial issue of the human vomeronasal organ, regarding its structure, function, and identity. The following table shows the age of fetuses (x), in weeks, and the length of crown-rump (y), in millimeters. For part (g), predict the crown-rump length of a 19-week-old fetus.

a. Find the regression equation for the data points.

b. Graph the regression equation and the data points.

c. Describe the apparent relationship between the two variables under consideration.

d. Interpret the slope of the regression line.

e. Identify the predictor and response variables.

f. Identify outliers and potential influential observations.

g. Predict the values of the response variable for the specified values of the predictor variable, and interpret your results.

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५ 10 10 13 13 y 66 66 108 106 18 19 19 23 161 166 177 25 28 228 235 280