Subsoil drainage is more important than soil type
Indicate whether the statement is true or false
True
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In ____ systems, a small motor is located in the gun to pull the wire through the conduit.
A. spool gun type B. push-type C. push-pull-type D. pull-type
The ASTM number for aluminum pipe would start with the _____.
a. number 6 b. letter B c. letter A d. number 105
The article “Application of Surgical Navigation toTotal Hip Arthroplasty” reports that in a sample of 123 hip surgeries of a certain type, the average surgery time was 136.9 minutes with a standard deviation of 22.6 minutes.
a. Find a 95% confidence interval for the mean surgery time for this procedure. b. Find a 99.5% confidence interval for the mean surgery time for this procedure. c. A surgeon claims that the mean surgery time is between 133.9 and 139.9 minutes. With what level of confidence can this statement be made? d. Approximately how many surgeries must be sampled so that a 95% confidence interval will specify the mean to within ±3 minutes? e. Approximately how many surgeries must be sampled so that a 99% confidence interval will specify the mean to within ±3 minutes?
Technician A says that when stress relieving on high strength steel surfaces, it must be done over a larger area than on standard or mild steel. Technician B says a limited amount of heat can be used so long as the safe temperature time threshold is not exceeded. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B