Which values of x in the interval 0 x 360 satisfy the equation 2sin^2x+sinx-1=0?

Factor first: (sinx+1)(2sinx-1)=0
sinx+1=0 or 2sinx-1=0
sinx=-1 or sinx=1/2
0≤x≤360, so x=270,  or x=30 or x=150

(a) Yes effect is significant.

(b) 0.15 or 15%

Step-by-step explanation:

Most conventional significance level is 0.05 and a p value less 0.05 indicated that test hypothesis is false and should be rejected. Given in statement that 'p < 0.05'Eta-squared (η^{2})  is the measure of proportion of variance which 0.18 given in the statement.