Remember, we have a quiz on Friday to start class--the quiz is just like this homework! If you can ace tonight's homework, you'll be ready for the quiz!
Here are the questions in case you lost yours or were out:
For each statistical study below identify the following:
a. The population
b. The population parameter of interest
c. The sampling frame
d. The sample
e. The sampling method, including if randomization was employed
f. Any potential sources of bias or problems in generalizing to the population
1. A question posted on the Lycos Web site on 18 June 2000 asked visitors to the site to say whether they thought that marijuana should be legally available for medicinal purposes.
2. Hoping to learn what issues may resonate with voters in the coming election, the campaign director for a mayoral candidate selects one block from each of the city’s election districts. Staff members go there and interview all the residents they can find.
3. Dairy inspectors visit farms unannounced and take samples of the milk to test for contamination. If the milk is found to contain dirt, antibiotics, or other foreign matter, the milk will be destroyed and the farm re-inspected until purity is restored.
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