document.write( "Question 1136666: 3.An electrical company claims that the average life of the bulbs it manufactures is 1200 hours with a standard deviation of 250 hours. If a random sample of 100 bulbs is chosen, \n" ); document.write( "
Algebra.Com's Answer #754473 by ikleyn(52813)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The post was interrupted and broken.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Fix; then re-post to the forum.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Do not post to me personally (please).\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "---------------- \n" ); document.write( "Comment from student: 3.An electrical company claims that the average life of the bulbs it manufactures is 1200 hours \n" ); document.write( "with a standard deviation of 250 hours. If a random sample of 100 bulbs is chosen, \n" ); document.write( "a.What are the mean and standard error of the sampling distribution? (3 pts.) \n" ); document.write( "b.What is the probability that the sample mean will be: b.1 At least 1150 hours? (4 pts.) \n" ); document.write( "b.2 Less than 1250 hours? (4 pts.) \n" ); document.write( "b.3 Between 1150 and 1250 hours? (4 pts.) \n" ); document.write( "----------------\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "My response : As I said, do not post to me personally (please).\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " Re-post to the forum.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |