Posted by Kathy on Tuesday, November 2, 2010 at 11:05am.
What are the steps espoused by Applied Statistics in Business and Economics for formal hypothesis testing? Explain why the sequence is important. What might happen if the hypothesis test is performed before the researcher has decided on the significance level?

Statistics  Dianne, Thursday, November 11, 2010 at 8:05pm
Twenty students randomly assigned to an experimental group receive an
instructional program; 30 in a control group do not. After 6 months, both groups
are tested on their knowledge. The experimental group has a mean of 38 on the
test (with an estimated population standard deviation of 3); the control group
has a mean of 35 (with an estimated population standard deviation of 5). U
Answer This Question
Related Questions
 STAT  Given a sample size of 18, with sample mean 660.3 and sample standard ...
 STAT  Given a sample size of 18, with sample mean 660.3 and sample standard ...
 statistics  To test H0:µ =80 versus H1:µ < 80, a simple random sample of ...
 STATS  Given a sample size of 18, with sample mean 660.3 and sample standard ...
 Statistics  Which of these statements is always true for a researcher who is ...
 Statistics  A researcher predicts that watching a film on institutionalization ...
 Statistics  Which testing a statistical hypothesis with significance level of ...
 Statistics  Need help with these questions: I have already answered 27 out of ...
 Psychological Statistics  A researcher predicts that watching a film on ...
 Psychological Statistics  A researcher predicts that watching a film on ...
More Related Questions