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Unformatted text preview: RES 342 Research and Evaluation II University of Phoenix Material PARAMETRIC AND NONPARAMETRIC DATA IDENTIFICATION ASSIGNMENT Label each of the following situations P if it is an example of parametric data or NP if it is an example of nonparametric data. 1. A manufacturer produces a batch of memory chips (RAM) and measures the mean-time-between- failures (MTBF). The manufacturer then changes a manufacturing process and produces another batch and again measures the MTBF. Did the change to the process improve the MTBF? _P___ 2. From a written survey where the respondents were asked to rate an individual on a scale of 1 to 5, one group rated an individual a 3.7, another group rated the individual a 4.3. Is the difference statistically significant? _P___ A catering company is buying equipment in order to set up their own store. They have a choice of two ovens that they can purchase for the store. The used oven is $100 less than the new oven, but its heating calibration is off by 20 they can purchase for the store....
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This note was uploaded on 03/15/2011 for the course RES 342 taught by Professor Carey during the Spring '08 term at University of Phoenix.
- Spring '08