2.0000 167.0262 8.0735 Is there a relationship between the number of Salespersons (units-10 salespersons) at a branch office and Annual Sales (units-$100,000)? Use the excel output above to answer the following question. What is the 98% confidence interval for B1 (with appropriate units)? O a. ($12.1413/salesperson, $62.8989/salesperson) O b. ($121,413.2280/salesperson, $628,988.7720/salesperson) OC. ($12,141.3228, $62,898.8772) O d. ($119,137.3864, $139,874.8136) Oe. None of the answers is correct
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- A random sample of 25 tires gave the average life as 38000 km and S.D. as 5000 km. Can it be concluded that the sample is drawn from a population with a mean life of 40000 km?Find the residual associated with 2007An assemb ly-line worker at Joseph Milner'sFabrication Shop inserts Pa rt A into Part B. A time study wasconducted and produced the fo llowing results in seconds: 8.4, 8.6,8.3, 8.5, 8.7, 8.5. What is the average cycle time?
- Suppose a population of devices has a Weibull life distribution with β= 1.6 and θ= 25. What is the mean of the residual life distribution for copies of the device that survive 15 hours?A worker with a weight of 65 kg and a body surface area of 1.74 , performs physical work activities in several work environments as shown in the following table. The work activities of these workers require energy and a measured metabolic rate of 400 W/m2. During their work activities, the worker wears a coverall made of polyolefin and wears a headgear (1) Calculate the average WBGT of the work environment. (2) Perform an analysis related to the heat stress experienced by the worker, if the worker performs his work activities for 75% of his total working time and the rest is rest, (note: use TLV from ACGIH and ISO 7243)If a researcher wants to find out the average monthly expenses of all university students in Edmonton, this average would be an example of ________ . a. samplecross out b. statisticcross out c. populationcross out d. parameter
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