document.write( "Question 740004: An insurance company wishes to examine the relationship between income (in $,000) and the amount of life insurance (in $,000) held by families. The company drew a simple random sample of families and obtained the following results: \n" );
document.write( "Family Income Amount of life insurance \n" );
document.write( "A 80 120 \n" );
document.write( "B 100 200 \n" );
document.write( "C 110 220 \n" );
document.write( "D 90 160 \n" );
document.write( "E 80 180 \n" );
document.write( "F 140 270 \n" );
document.write( "G 110 150 \n" );
document.write( "H 100 240 \n" );
document.write( "I 80 160 \n" );
document.write( "J 100 210\r \n" );
document.write( "\n" );
document.write( "QUESTION 21 \n" );
document.write( "What is the least squares estimate of the slope? \n" );
document.write( "Answer should be to four decimal places e.g. 1.2345. \r \n" );
document.write( "\n" );
document.write( "QUESTION 22 \n" );
document.write( "What is the least squares estimate of the Y intercept? \n" );
document.write( "Answer should be to four decimal places e.g. 1.2345. \r \n" );
document.write( "\n" );
document.write( "QUESTION 23 \n" );
document.write( "What is the prediction for the amount of life insurance for a family whose income is $85,000? \n" );
document.write( "Answer should be to four decimal places and be consistent with your original data set e.g. if your answer was $75,410.90 you would enter 75.4109 as your answer. \r \n" );
document.write( "\n" );
document.write( "What would be the residual (error) term for a family income of $90,000? \n" );
document.write( "Answer should be to four decimal places and be consistent with your original data set e.g. if your answer was $940.90 you would enter 0.9409, if your answer was $9,400.90 you would enter 9.4009 etc. \n" );
document.write( " \n" );
document.write( "
![\"\"](\"/images/stars/stars-13.gif\")
