7) the data listed on the horizontal axis in the graph Intemet Usage 24 20- 16 1

Question

7) the data listed on the horizontal axis in the graph Intemet Usage 24 20- 16 12 13 25 3748 73 85 Minutes online A) interval B) nominal C) ratio D) ordinal 8) the final grades (A, B, C. D, and F) for students in a statistics class A) ordinal B) interval C) nominal D) ratio 9) number of pages in your statistics book 9) A) ratio B) ordinal C) interval D) nominal 10) temperatures of 73 selected refrigerators 10) A) ratio B) interval C) ordinal D) nominal 11) numbers on the shirts of a girl's soccer team A) interval B) ordinal C) nominal D) ratio 12) Which one of the following data are continuous? 12) A) the number of musicians performing in the MP3 file B) the number of times the file has been downloaded C) the time remaining for an MP3 music download D) all of these represent continuous data Determine whether the study is an observational study or an experiment. 13) A scientist was studying the effects of a new fertilizer on crop yield. She randomly assigned 13) one, the new fertilizer was used for a year. On the plots in group two, the old fertilizer group was used. At the end of the year the average crop yield for the plots in group one was compared with the average crop yield for the plots in group two. B) observational study A) experiment 14) their ages. A) observational study B) experiment

Explanation / Answer

Solution:-

7) C) Ratio

Minutes is at the ratio level of measurement because it has an absolute zero value and the difference between values is meaningful.  

8) A) Ordinal

Course grades (A, B, C, D) are indicators of the quality of a student’s performance and are ordered, so this is an example of an ordinal level of measurement.

9) A) Ratio

10) B) [Interval]

Temperature in degrees F is at the interval level of measurement because there is no absolute zero and values of temperature cannot be expressed as ratios.

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