20 years ago, 57% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. a recent survey found that 297 of 750 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. do parents feel differently than they did 20 years ago? use the a=0.1 level of significance. what is the standard deviation of this? I also need to figure out the test statistic (z) and (p)