PROBLEM 11E

(The information presented in this exercise comes from the Westview Blueberry Farm and National Oceanic and Atmospheric Administration Reports [NOAA].) For the following paired data, (x, y), x gives the Holland, Michigan, rainfall for June, and y gives the blueberry production in thousands of pounds from the Westview Blueberry Farm:

The data are from 1971 to 1989 for those years in which the last frost occurred May 10 or earlier.

(a) Find the correlation coefficient for these data.

(b) Find the least squares regression line.

(c) Make a scatter plot of the data with the least squares regression line on the plot.

(d) Calculate and plot the residuals. Does linear regression seem to be appropriate?

(e) Find the least squares quadratic regression curve.

(f) Calculate and plot the residuals. Does quadratic regression seem to be appropriate?

(g) Give a short interpretation of your results.

Demographic Data 1. Population data collection 2.Coverage error 3. Content error 4. Defacto population 5. De Jure population 6. Published info. on population data. 1. Population Data Collection: ● How many people are within a specific country’s borders ● How are they distributed geographically ● How many people are being born ● How many people are dying ● How many people are getting married ● Internal and external migrants ● At town/city level, census taking done every five years. ● At National level, census taking done every 10 years. Decennial census taking. ● Formal census taking began in 1790. ● More progressive and inclusive. ● Census questionnaires administered to permanent households/ residential homes/ apartments. Nursing homes 2. Coverage e