document.write( "Question 768449: CASE STUDY: 1 \n" );
document.write( "The bulbs manufactured by a company gave a mean life of 3000 hours with standard \n" );
document.write( "deviation of 400 hours. If a bulb is selected at random, what is the probability it will \n" );
document.write( "have a mean life less than 2000 hours? \n" );
document.write( "Question: \n" );
document.write( "1) Calculate the probability. \n" );
document.write( "2) In what situation does one need probability theory? \n" );
document.write( "3) Define the concept of sample space, sample points and events in context of \n" );
document.write( "probability theory. \n" );
document.write( "4) What is the difference between objective and subjective probability? \n" );
document.write( "CASE STUDY : 2 \n" );
document.write( "The price P per unit at which a company can sell all that it produces is given by the \n" );
document.write( "function P(x) = 300 — 4x. The cost function is c(x) = 500 + 28x where x is the number \n" );
document.write( "of units produced. Find x so that the profit is maximum. \n" );
document.write( "Question: \n" );
document.write( "1) Find the value of x. \n" );
document.write( "2) In using regression analysis for making predictions what are the assumptions \n" );
document.write( "involved. \n" );
document.write( "3) What is a simple linear regression model? \n" );
document.write( "4) What is a scatter diagram method? \n" );
document.write( "CASE STUDY : 3 \n" );
document.write( "Mr Sehwag invests Rs 2000 every year with a company, which pays interest at 10% p.a. \n" );
document.write( "He allows his deposit to accumulate at C.I. Find the amount to the credit of the person \n" );
document.write( "at the end of 5th year. \n" );
document.write( "Question : \n" );
document.write( "1) What is the Time Value of Money concept. \n" );
document.write( "2) What do you mean by present value of money? \n" );
document.write( "3) What is the Future Value of money. \n" );
document.write( "4) What the amount to be credited at the end of 5th year. \n" );
document.write( "CASE STUDY : 4 \n" );
document.write( "The cost of fuel in running of an engine is proportional to the square of the speed and is \n" );
document.write( "Rs 48 per hour for speed of 16 kilometers per hour. Other expenses amount to Rs 300 \n" );
document.write( "per hour. What is the most economical speed? \n" );
document.write( "Question: \n" );
document.write( "1) What is most economical speed? \n" );
document.write( "2) What is a chi-square test? \n" );
document.write( "3) What is sampling and what are its uses. \n" );
document.write( "4) Is there any alternative formula to find the value of Chi-square\r \n" );
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