Reference no: EM1313915

To describe experiment, design  and model resulting from analysis.

An engineer is studying methods for improving the ability to detect targets on a radar scope. Two factors she considers to be important are the amount of background noise ("ground clutter") on the scope and the type of filter placed over the screen. An experiment is designed using three levels of ground clutter and two filter types. The experiment is performed by randomly selecting a treatment combination and then introducing a signal representing the target into the scope. The intensity of this target is increased until the operator observes it. The intensity level at detection is then measured. Because of operator availability, it is convenient to select an operator and keep him or her at the scope until all the necessary runs have been made. Furthermore, operators differ in their skill and ability to use the scope. Consequently, it seems logical to use the operators as blocks. Four operators are randomly selected. Once an operator is chosen, the order in which the six treatment combinations are run is randomly determined. The data are shown in the following table:

Operators	1		2		3		4
Filter Type	1	2	1	2	1	2	1	2
Ground Clutter
Low	90	86	96	84	100	92	92	81
Medium	102	87	106	90	105	97	96	80
High	114	93	112	91	108	95	98	83

Write a report to

i. Describe the experiment and the design,

ii. Discuss the results from your informal and formal analysis.

iii. Describe the model resulting from your analysis, and

iv. Discuss the conclusions you drew from part ii and iii.