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During tissue phantom analysis, six pins are aligned in a straight line from top to bottom, with pin spacing increasing from close to farther apart. What would be tested if the distance between each pin is measured?

Spatial pulse length is measured in:

Which axis of M-mode indicates time?

Which of the following is the appropriate transducer for imaging superficial structures?

Which of the following artifacts refers to the hyperechoic region posterior to an abnormally low attenuating area, such as a cyst or the bladder?

What can be changed to improve lateral resolution?

What is the distance a pulse occupies from start to finish?

Which of the following correspond to the transducer component indicated by the number 3?

What is the primary determinant of the transducer’s acoustic power output?

It is known that the population variance equals 484. With a 0.95 probability, the sample size that needs to be taken to estimate the population mean if the desired margin of error is 5 or less is ____________. Refer to the following formula and table.  σ x   =   σ n  z = x – μ σ x  Standard Error = σ n  Margin of Error = z α / 2   *   σ n  Confidence Interval = x   ±   z α / 2 * σ n n= ( z * σ m a r g i n   o f   e r r o r ) 2 z dsistribution table from 0.0 to 2.49.jpg