In: Statistics and Probability
A reading course claims that it increases reading speed and comprehension. Prior to enrolling in the course, a student read an average of 198 words per minute. The following data represents the words per minute read for 10 different passages read after the course.
| 
 206  | 
 217  | 
 197  | 
 199  | 
 210  | 
| 
 210  | 
 197  | 
 212  | 
 227  | 
 209  | 
Assuming that the conditions for inference are met:
a. Explain in detail the statistical inferential method you would use to proof whether or not the course is effective.
b. Was the course effective? Use the α= 0.10 level of significance. Show your calculations.