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Mathematics, 15.02.2020 00:58 lokaranjan5736
Computer programmers employed by a software developer were asked to participate in a month-long training seminar. During the seminar, each employee was asked to record the number of hours spent in class preparation each week. After completing the seminar, the productivity level of each participant was measured. A positive linear statistical relationship between participants' productivity levels and time spent in class preparation was found. The seminar leader concluded that increases in employee productivity are caused by increased class preparation time. a. Were the data used by the seminar leader observational or experimental data? b. Comment on the validity of the conclusion reached by the seminar leader.
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