Answer the following statement(s) true (T) or false (F)

1. In calculations for a confidence interval involving proportions, there is really no statistical difference between the population proportion, P, and the sample proportion, p. It’s simply a matter of two words designed to describe the same thing.
2. In the construction of confidence intervals, the choice of the level of confidence is up to the discretion of the researcher.
3. In the construction of confidence intervals, the choice of the level of confidence is up to the discretion of the researcher.
4. The z distribution is always used with confidence intervals for proportion.


1. False
2. True
3. False
4. True

Criminal Justice

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Fill in the blank with correct word.

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a. Identity Theft Assumption and Deterrence Act b. False Impersonation Act c. Improper Ways and Means Act d. Credit Card Scam Vulnerability Act

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The ATF's Bomb Data Center maintains a __________________ to assist police in tracking explosives from manufacturer to purchaser or possessor to identify crimes and suspects

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