1 Faculty /Study Program : MIPA/Mathematics Education 2 Subject & Code : Elementary Statistics, MAA 306 3 The number of SKS : Theory : 2 sks  Practice : 1 sks 4 Semester and Duration : II, Duration : 100 minutes 5 Based Competency : To understand confidence interval of difference between two means
6.  Achievement Indicator                  :

a)  Student can solve problem related to confidence interval of difference between two means
7.  Material                                         : Confidence interval of difference between two means
8.  Lecture Activity                            : 21

 Step Component Activity Duration Method Media References Introduction Explain      briefly      the       material (confidence interval of mean) 20’ Discussion  and Exercise LCD, white/black board A: 296-359 A: 436-486 B: 437-725 Main Activities 1.   Explain the formula of confidence interval   of   difference   of   two means 2.   Do   exercise   and   discuss   the results 60’ Closing Activity Conclude the entire materials and give tasks 10’ Further Activities Invite the students to ask or give an opinion about the materials 10’

9. Evaluation
The evaluation is performed based on the student activities in discussion, doing exercise.

10. References
A.      Triola, Mario F. 2004. Elementary Statistics. New York: Addison-Wesley.

B.      Weiss, Neil A. 1995. Introductory to Statistics. New York: Addison-Wesley.