In a football league, the worst-performing teams get the opportunity to select t

Question

In a football league, the worst-performing teams get the opportunity to select the best defensive tackles coming out of college during the draft. A journal collected data for a 313 defensive tackles drafted in the past 40 years as part of a study. Several variables were measured for each defensive tackle, including draft position (top 10, between 11-50, after 50), winning ratio, and production score (higher scores indicate more productive defensive tackles). The researchers discovered that draft position is only weakly related to performance. They concluded that "higher drafted defensive tackles do not appear to perform any better." Complete parts (a) through (c) below. a. What is the experimental unit for this study? A draft position O A defensive tackle A researcher A football team b. Identify the type (quantitative or qualitative) of each variable measured. Is draft position a quantitative or qualitative variable? A. Quantitative B. Qualitative ls winning ratio a quantitative or qualitative variable A. Qualitative B. Quantitative ls production score a quantitative or qualitative variable? Note that production score is a value calculated from players' statistics to measure their performance. A. Qualitative B. Quantitative c. Is the study an application of descriptive or inferential statistics? Explain A. The study is an application of inferential statistics because it measured different variables for each defensive tackle and presented the data in a convenient form. B. The study is an application of descriptive statistics because it measured different variables for each defensive tackle and presented the data in a convenient form. C. The study is an application of descriptive statistics because it uses the sample of 313 defensive tackles to draw a conclusion about drafting defensive tackles in general. D. The study is an application of inferential statistics because it uses the sample of 313 defensive tackles to draw a conclusion about drafting defensive tackles in general.

Explanation / Answer

(a)

The correct option is a draft person.

(b)-(1)

The correct option is a Quantitative variable.

(b)-(2)

Winning ratio is a Quantitative variable.

(b)-(3)

Production score is a Quantitative variable.

(c)

Correction option is (D).

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