Statistics - Estimation and Confidence Intervals

1. A single number used to estimate a population parameter is ...
2. A range of values constructed from sample data so that the parameter occurs within that range at a specified probability is ...
3. A human resource manager for Carver County is evaluating a recent effort to improve the health of the county's firefighters by providing an exercise room in each of the county's firehouses. Their records ...
4. A financial planner wants to compare the yield of income- and growth-oriented mutual funds. Fifty thousand dollars is invested in each of a sample of 35 income-oriented and 40 growth-oriented funds. The mean increase for a two-year period for the income funds is $1100. ...

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