Is this sample representative of the population at large? The ...

[lunatika]

Is this sample representative of the population at large?
 
  The average sentence (in months) for homicide is 227 (Gaines & Miller, 2003).
 
  A sample of inmates from a certain prison, all of whom having been convicted of homicide, was selected and their sentences calculated. The sentences follow: 200, 225, 197. 256, 300, 158, 220, 226, 230, 215, 237, 223, and 243.
 
 
 What will be an ideal response?

Question 2

Whenever the value of the estimated standard error of difference is
  increased, then
 
  a. the positive correlation was significant
  b. the zero correlation was not significant
  c. the repeated-measures design was used
  d. none of these

[kingfahad97]

Answer to Question 1

This sample is representative of the population at large.

Answer to Question 2

d

[lunatika]

Thanks for the timely response, appreciate it

[Jsherida]

Gracias!