Comprehensive insurance coverage using control groups

Problem: Discuss whether the vagueness of the following passage is appropriate to the context that is stated or implied. Pay particular attention to the underlined expressions.

'Comprehensive Coverage. The insurer will pay for direct and accidental damage to the insured's automobile and its equipment not caused by collision or upset.'- From an automobile insurance policy

Answer

For each of the following investigations:

a. Identify the causal hypothesis at issue.

b. Identify what kind of investigation it is.

c. Describe the control and experimental groups.

d. State the difference in effect (or cause) between control and experimental groups.

e. Identify any problems in either the investigation or the report of it, including but not necessarily limited to uncontrolled variables.