You can make a prediction about a set of data (Examples: 1. I think students that get B’s (or higher) study more than 10 hours a week. 2. I think more than 70% of my friends own iphones.)
It takes time to come up with a good idea. You need to think about a good question that can be answered with numerical data. (See Guidelines and Rubric paper for more examples.)
You need to decide if you are comparing means (Example 1 above) or proportions (Example 2 above.). This is very important! It decides whether you are using a t-distribution (means) or a z-distribution (proportions).
Standard deviation may be calculated using your calculator (Do not put on the handwritten calculation paper.)
The handwriting calculation paper will include written out work for confidences intervals and the hypothesis test. (You should use your calculator to check the final result, but the paper should show all the work.)
Ask yourself all the questions below – before, during and after you write your paper.
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