11.60 Carrasco and Uribeotxeberria (IEE Proceedings Communications, 2003) recorded the total number of operations per input pattern required to implement two different algorithms, (SRK and RTRL) for different number of receiving antenna elements. They are reported in the table below.

a Make a scatterplot of the number of operations versus the number of antennas used for each algorithm used.
b Comment on the nature of the relationships observed.
c Estimate the nature of the relation, using the appropriate model for each type of algorithm.
d Test for slope at a 5% error rate.

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No. of Antennas 2 3 4 56 7 8 SRK 80 156 256 380 528 700 896 RTRL 260 340 420 500 580 660 740