Label each of the following situations“P” if it is an example of parametric data

Question

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.   In a comparison of two towns, is the average height of itsresidents the same? _____

2.    Amanufacturer produces a batch of memory chips (RAM) and measuresthe mean-time-between-failures (MTBF). The manufacturer thenchanges a manufacturing process and produces another batch andagain measures the MTBF. Did the change to the process improve theMTBF? _____

3.   The average life span of a dog is proportional to the amount ofcalcium consumed. _____

4.   The correlation between gene disorders and certain diseases._____

5.   From a written survey where the respondents were asked to rate anindividual on a scale of 1 to 5, one group rated an individual a3.7, another group rated the individual a 4.3. Is the differencestatistically significant? _____

6.    Astudy of vehicle accidents on a military installation compared todrivers' rank. _____

7.   Show that the numbers drawn in a state lottery are truly random._____

8.   There is a direct correlation to a student's grade and thestudent's rating of an instructor. _____

Explanation / Answer

1. P

2. P

3. P

4. NP

5. NP

6. NP

7. P

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