Thursday

January 29, 2015

January 29, 2015

Posted by **Kathy** on Tuesday, November 2, 2010 at 11:05am.

- Statistics -
**Dianne**, Thursday, November 11, 2010 at 8:05pmTwenty 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 ...

STATS - Given a sample size of 18, with sample mean 660.3 and sample standard ...

Statistics - Can a hypothesis test yield a statistically significant (say p<...

statistics - Complete the hypothesis test: null hypothesis = 52, alternative ...

statistics - A researcher has collected statistics pretest scores for students ...

statistics - Can a hypothesis test yield a statistically significant (say p<=...

Statistics - Can a hypothesis test yield a statistically significant (say p<=...

statistics - One example of hypothesis testing would be to conduct a testing on ...

Statistics - Which testing a statistical hypothesis with significance level of ...