What are the null and alternative hypothesis

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Twenty years ago 48% 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 225 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 today than they did twenty years ago? Use the a= 0.05 level of significance.

Because np0 (a-p0) = 187.2 greater than 10, the sample size is less than 5% of the population size, and the sample can be reasonably assumed to be random, the requirements for testing the hypothesis are satisfied. Round to one place decimal as needed.

What are the null and alternative hypothesis?

HO = P = 0.48 VERSUS H1 P NOT EQUAL TO 0.48

Determine the test statistic Z0

z0 = -9.87 round to two decimal places

Determine the critical values. Select the correct choice

a= plus or minus z alpha/2 = plus or minus ____

b= z alpha = _____

Reference no: EM132342727

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