Generating Sinusoidal Signal in Noise and Computing SNR $$\mathbf { S } _ { 1 }$$

Generating sinusoidal signal in noise and computing SNR.The following worksheet specifies a
15-sample sinusoidal signal $$\mathbf { S } _ { 1 }$$ having one period with amplitude specified in A2.The noise $\mathrm { N } _ { \mathrm { i } }$ variance $\sigma _ { \mathrm { N } } ^ { 2 }$ is specified in B2.
a.What is the formula that computes the signal
$\mathrm { S } _ { 1 }$ in B6?
b.What is the formula that computes the noise
$\mathrm { N } _ { 1 }$ in C6?
c.What is the formula that computes the observed signal
$x _ { 1 }$ in D6?
d.What is the formula that computes the signal energy
$\mathrm { E } _ { \mathrm { s } }$ in G5?
e.What is the formula that computes the SNR in G7?