Chapter PIII, Problem 18RE

To determine

To find: that it is an observational study, sample survey or an experiment and all the parameter of this study and survey and types of conclusions could be reached on the basis of given data.

Explanation of Solution

Researchers have the calculus knowledge. This was an experiment conducted by a statistical professor and used block design to construct distinct blocks by whether or not the student takes a calculus.

At 2 levels, which are software and no software, the experiment had one aspect. There are 2 treatments.

Since researchers randomly allocated 30 hamsters for the laboratory test, the function of randomization is entirely randomised. The final exam score is the response variable.

The experiment may use the blinding that graders do not know which software was used by students and which software is not used by the student. The experiment concludes that the professor will determine whether or not calculus students perform differently from those students who have not had calculus if the computer software is beneficial.