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Memorandum To: Madison Thomson, MDB Corporation From: Emma Saward, TechnoMart Industries Subject: Analysis of TechnoMart Industries employee satisfaction survey Dear Madison, Management is concerned about the wide variation in work hours between TechnoMart employees and whether factors like employe e job satisfaction, occupation and union membership play any part in this variation. TechnoMart also has staff planning issues that need addressing, including planning to replace workers who retire, undertaking a recruitment drive for new employees and providing adequate promotion opportunities within the company. As part of the last Enterprise Barg aining Agreement, we agreed with the unions that work hours would be reviewed, for all employees. Where possible, employees should not be working excessive amounts of overtime. I know that you recently undertook a survey of employees in TechnoMart. Could y ou please provide me with answers to the following questions? 1. An overall view of work hours at TechnoMart (a) Provide me with an overall summary of hours worked at TechnoMart, keeping in mind that the normal working week is 40 hours. Please also include comm entary on any employees in terms of unusual work hours. (b) I’m also interested in whether we have many employees that are working more than 40 hours. Can you provide me with an accurat e estimate of the total number of employees across the whole organization w ho would work more than 40 hours? Likewise, how many are working more than 60 hours? 2. Comparison of union and non -union members In addition to the overall analysis you are carrying out for work hours, I am interested in how union members in the company compare to non -union members in regard to a few key variables. In particular, I want you to investigate how union members and non -union members c ompare in regard to: (a) Hours worked (b) Occupation (c) Job satisfaction Based on the above, can you provide me with a brief summary of how the two groups compare. 3. Predicting Pre -Tax Income Of all the variables you have collected, is there any one that stands out as a possible explanation or predictor of those people likely to achieve a higher pre - tax income than others do ? 4. Workers approaching retirement Senior management are concerned that over the next few years the company will need to undertake a large recruitment drive as our workforce is aging and a substantial number of employees will be retiring. Can you provide me with an estimate of the: (a) average age of TechnoMart employees (b) average time our employees have been working at TechnoMart 5. Union membership In a recent Enterprise Bargaining meeting, the union made a number of claims that I would like you to check. (a) It was also mentioned that our employees are very loyal to the company and that the union believed the average length of empl oyment at TechnoMart would exceed the industry average of 7.5 years. Could you check if this claim is true for all employees? What about for only male employees? What about only for female employees? (b) There is some speculation that the union members work at least 45 hours per week. Is there any way of confirming this? 6. Future Surveys Finally, I am interested in your opinion about future surveys of our employees. (a) I am concerned that a sample of only 400 employees seems too small compared to the population of 9800. Could you explain to me how we calculate an ideal sample size? (b) Of particular interest to me is being able to accura tely estimate the size of the problem we have with staff working excessive hours (i.e. more than 60 hours a week). In other words, in order to accurately estimate the size of our overtime problem, do I have a sufficient numbe r of staff in my sample who work more than 60 hours? If not, how many should be sampled? I look forward to your response. Sincerely, Emma Saward