Testing to see if there is evidence that the population mean for mathematics placement exam scores is greater than 25. Use Figure 4.3.

Figure 4.3

A situation is described for a statistical test and some hypothetical sample results are given. In each case:
(a) State which of the possible sample results provides the most significant evidence for the claim.
(b) State which (if any) of the possible results provide no evidence for the claim.

Transcribed Image Text:

Sample A Sample B- Sample C Sample D- 19 22 25 28 31 34