Posts by please help - urgent
Total # Posts: 2
So there is NOT good evidence, correct?
A score of 243 is a "basic" reading level. Scores for a random sample of 3000 students had a xbar = 250 with a standard error 1.0 The 99% confidence interval for the mean score all students in the city is 247.4 to 252.6. Ques: Is there good evidence that the mean for...