A skeletal structure that allows a sheep to be comfortable has a top line that is:
a. slanted downward c. slanted upward
b. level d. bowed
b. level
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The pipe used in plumbing can be made of copper, plastic, galvanized steel, or cast iron.
Answer the following statement true (T) or false (F)
Let 
be a simple random sample from a 
population. For any constant k> 0, define 
. Consider 
as an estimator of 
.
a. Compute the bias of 
in terms of k.
b. Compute the variance of in terms of k.
c. Compute the mean squared error of in terms of k.
d. For what value of k is the mean squared error of minimized?
High- and low-pressure safety switches are installed in _____
a. series in the compressor's contactor coil b. series in the compressor's common conductor c. parallel with the compressor's contactor d. series with a current-sensing loop
Technician A says both turbochargers and superchargers force more fuel into the engine for greater performance. Technician B says engines with turbochargers or superchargers require high octane fuel. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A or B