43.A university was interested in examining the overall effectiveness of its onl

Question

43.A university was interested in examining the overall effectiveness of its online statistics course, along with the effectiveness of particular aspects of the course. First, the university wanted to see whether the online course was better than a standard course. Second, the university wanted to know whether students learned best using Excel, using Minitab, or using no statistical package at all. The university randomly selected a group of 30 students and administered one of the different variants of the course (i.e., traditional or online, coupled with one of the software options) to each student. The success of each variant was measured by the students' average improvement between a pre-test and a post-test. How many treatment groups are there in this study? a. 3 b. 4 c. 5 d. 6 e. 7

Explanation / Answer

Ans:

There are 6 treatment groups in above study.

Option d is correct.(6)

Explanation:

As,there are 6 possible combinations of the values of the two factors:

2 instruction types and 3 software types

Instruction types:traditional or online

Software types: Excel, using Minitab, or using no statistical package

So,possible combinations=2*3=6

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