http://reply.papertrans.cn/3/293/29201/29201-31.png
Submitted on: 03 March 1998.
Revised on: 22 March 1998.
Accepted on: 31 March 1998.
NULL
http://reply.papertrans.cn/3/293/29201/29201-33.png
http://reply.papertrans.cn/3/293/29201/29201-34.png
http://reply.papertrans.cn/3/293/29201/29201-35.png
Submitted on: 11 August 2020.
Revised on: 16 September 2020.
Accepted on: 30 September 2020.
Teaching Statistics---WILEY