document.write( "Question 1116241: At a traffic signal there are 3 cars arriving in a minute. A random sample of 1500 minutes is taken and 7,500 cars were observed arriving at the signal. Are the number of cars arriving at the signal going up? Test at a 5% level of significance? \n" ); document.write( "
Algebra.Com's Answer #731303 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! This is the same as 5 cars a minute \n" ); document.write( "for 5, given parameter 3, p(5)=e^(-3)*3^3^5/5!\r \n" ); document.write( "\n" ); document.write( "This can be solved for all relevant values \n" ); document.write( "Use the table: \n" ); document.write( "cumulative probability up to 5 is 0.9161. \n" ); document.write( "This is not significantly larger at the 0.05 level. \n" ); document.write( " |