In problem, solve the given differential equation by undeter- mined coefficients. y"y 2x sinx m: -mej- mri m2-i ye c, cosz+ csin y(ab)cos x ccxd)siny c=0 d: 2 2a+2d=0 4an 2b+2 c-o a=-2 p- cosx 9cicos x+ c2sinz 2 sin - xco5x + will give the 2. 0331 03 38 pe cbookpro

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.