Give the largest interval over which the general solution is defined. (think about the implications of any singular points. enter your answer using interval notation.) x dy dx + 4y = x3 − x

Summary statistics given for independent simple random samples from two populations. use the pooled t-interval procedure to obtain specified confidence interval. x1=71.6, s1=3.9, n1=11, x2=67.9, s2=3.4, n2=9 determine a 99% confidence level.