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Twenty years​ ago, 56​% of parents of children in high school felt it was a serious...

Twenty years​ ago, 56​% 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 295 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 α=0.01 level of significance.

Find the test statistic.

z0=________

​(Round to two decimal places as​ needed.)

Math   Statistics-And-Probability   
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Answer #1

The Hypotheses are:

The Test Hypothesis

Conclusion:

Since the Test statistic |Z| >>Z 0.005 =2.58 hence we reject the null hypothesis annd conclude that there is sufficient evidence to support the claim.

The Z table used for Z value calculation is

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