There are 184 data in the document. The above screenshots are incomplete

QUESTION 1

How were the 184 participants in this study selected? Using a simple random sampling process Using a systematic random sampling process. Using a convenience sampling process. Using a cluster sampling process. There is insufficient information to answer this question.

QUESTION 2

Are these data valid? Explain your answer fully using plain language wherever possible.

QUESTION 3

"Regardless of whatever your response was regarding the validity of these data, we will assume for the remaining questions that the data are valid. Please acknowledge that you have read this notice and that you understand it." Acknowledged Huh?

ABC Company, Inc. 184 Employees Who Completed a Training Program Intended to Improve Employee Communication Skills. Employees were selected at random from a population of 11,429 and participation was mandatory. Date of Report 06/11/13 Employee Date of Hire Years with Firm Gender 0 = Male 1 = Female Birthdate Pre-Program Performance Rating Post-Program Performance Rating # Change in Performance Rating % Change in Performance Rating -0.0227 ID Age 56.40 1 0.01011983 01/15/83 30.41 0 01/18/57 44 43 -1 2 0.01051983 05/26/83 30.04 0 09/30/62 50.70 50 50 0 0.0000 3 0.02051983 05/26/83 30.04 1 02/10/59 54.34 76 75 -1 -0.0132 4 0.03051983 05/26/83 30.04 0 02/20/62 51.31 70 71 1 0.0143 5 0.01091983 09/15/83 29.74 0 07/06/60 52.93 51 50 -1 -0.0196 6 0.01111983 11/20/83 29.56 0 11/01/58 54.61 88 89 1 0.0114 7 0.01011984 01/12/84 29.41 0 03/18/60 53.23 74 75 1 0.0135 8 0.02011984 01/15/84 29.41 1 04/28/55 58.12 82 81 -1 -0.0122 9 0.03011984 01/28/84 29.37 1 11/30/52 60.53 88 85 -3 -0.0341 10 0.01021984 02/15/84 29.32 1 12/04/50 62.52 88 84 -4 -0.0455 11 0.01031984 03/01/84 29.28 1 05/11/58 55.08 48 49 1 0.0208 12 03/04/84 29.27 1 03/18/63 50.23 78 78 0 0.01031984 0.01051984 0.0000 0.0233 13 05/17/84 29.07 1 06/07/60 53.01 43 44 1 14 0.01061984 06/01/84 29.03 0 07/01/61 51.94 82 83 1 0.0122 15 0.01081984 08/30/84 28.78 0 07/10/58 54.92 57 56 -1 -0.0175 16 0.01101984 10/26/84 28.63 0 12/22/57 55.47 47 48 1 0.0213 17 0.02101984 10/30/84 28.61 1 05/01/49 64.11 64 60 -4 -0.0625 18 0.01121984 12/01/84 28.53 0 02/13/61 52.33 94 94 0 0.0000 19 0.02121984 12/01/84 28.53 05/01/60 53.11 78 77 -1 -0.0128 20 0.03121984 12/10/84 28.50 1 08/04/55 57.85 89 85 -4 -0.0449 21 0.04121984 12/10/84 28.50 1 02/15/63 50.32 70 69 -1 -0.0143 22 0.04121984 12/20/84 28.48 05/21/66 47.06 41 43 2. 0.0488 23 005121984 12120/84 28.48 1 12/07/60 5251 94 93 -1 -0.0106 ABC Company, Inc. 184 Employees Who Completed a Training Program Intended to Improve Employee Communication Skills. Employees were selected at random from a population of 11,429 and participation was mandatory. Date of Report 06/11/13 Employee Date of Hire Years with Firm Gender 0 = Male 1 = Female Birthdate Pre-Program Performance Rating Post-Program Performance Rating # Change in Performance Rating % Change in Performance Rating -0.0227 ID Age 56.40 1 0.01011983 01/15/83 30.41 0 01/18/57 44 43 -1 2 0.01051983 05/26/83 30.04 0 09/30/62 50.70 50 50 0 0.0000 3 0.02051983 05/26/83 30.04 1 02/10/59 54.34 76 75 -1 -0.0132 4 0.03051983 05/26/83 30.04 0 02/20/62 51.31 70 71 1 0.0143 5 0.01091983 09/15/83 29.74 0 07/06/60 52.93 51 50 -1 -0.0196 6 0.01111983 11/20/83 29.56 0 11/01/58 54.61 88 89 1 0.0114 7 0.01011984 01/12/84 29.41 0 03/18/60 53.23 74 75 1 0.0135 8 0.02011984 01/15/84 29.41 1 04/28/55 58.12 82 81 -1 -0.0122 9 0.03011984 01/28/84 29.37 1 11/30/52 60.53 88 85 -3 -0.0341 10 0.01021984 02/15/84 29.32 1 12/04/50 62.52 88 84 -4 -0.0455 11 0.01031984 03/01/84 29.28 1 05/11/58 55.08 48 49 1 0.0208 12 03/04/84 29.27 1 03/18/63 50.23 78 78 0 0.01031984 0.01051984 0.0000 0.0233 13 05/17/84 29.07 1 06/07/60 53.01 43 44 1 14 0.01061984 06/01/84 29.03 0 07/01/61 51.94 82 83 1 0.0122 15 0.01081984 08/30/84 28.78 0 07/10/58 54.92 57 56 -1 -0.0175 16 0.01101984 10/26/84 28.63 0 12/22/57 55.47 47 48 1 0.0213 17 0.02101984 10/30/84 28.61 1 05/01/49 64.11 64 60 -4 -0.0625 18 0.01121984 12/01/84 28.53 0 02/13/61 52.33 94 94 0 0.0000 19 0.02121984 12/01/84 28.53 05/01/60 53.11 78 77 -1 -0.0128 20 0.03121984 12/10/84 28.50 1 08/04/55 57.85 89 85 -4 -0.0449 21 0.04121984 12/10/84 28.50 1 02/15/63 50.32 70 69 -1 -0.0143 22 0.04121984 12/20/84 28.48 05/21/66 47.06 41 43 2. 0.0488 23 005121984 12120/84 28.48 1 12/07/60 5251 94 93 -1 -0.0106