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StatisticsQ&A LibraryQuestion HelpTwenty 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 244 of 800 parents of children in high school felt it was a serious problem that high school students were not being taught enough mathand science. Do parents feel differently today than they did twenty years ago? Use the a= 0.01 level of significance.Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2).Because npo (1-Po)(Round to one decimal place as needed.10, the sample size is5% of the population size, and the sample%3Dthe requirements for testing the hypothesissatisfied.What are the null and altemative hypotheses?Ноversus H1:(Type integers or decimals. Do not round.)Determine the test statistic, zo-(Round to two decimal places as needed.)Determine the critical value(s). Select the correct choice below and fill in the answer box to complete your choice.(Round to two decimal places as needed.)O A. Za =%3DO B. ±Za/2= +Choose the correct conclusion below.O A. Reject the null hypothesis. There is sufficient evidence to conclude that the number of parents who feel that students are not being taught enough math and science is significantly different from 20 years ago.O B. Do not reject the null hypothesis. There is sufficient evidence to conclude that the number of parents who feel that students are not being taught enough math and science is significantly different from 20 years ago.O C. Reject the null hypothesis. There is insufficient evidence to conclude that the number of parents who feel that students are not being taught enough math and science is significantly different from 20 years ago.O D. Do not reject the null hypothesis. There is insufficient evidence to conclude that the number of parents who feel that students are not being taught enough math and science is significantly different from 20 years ago.Click to select your answer(s).5:05 PM12/18/2019DELLF12F10F9F8F7F6F5F4F3F2F1NumPgUpHomeInsertBackspacePauseBreakScrollLock&Screen8.PODnEndDeleteHomeTabEnterCaps LockShiftShiftCtrlFnAltAltCtrl*00LLQuestion

Asked Dec 18, 2019

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Step 1

It is given that p is 0.48, *x* is 244 and *n* is 800.

In this case, np_{0}(1-p_{0})= 800*0.48*0.52=199.68 ≥ 10, the sample size is less than 5% of the population size, and the sample cab be reasonably assumed to be random, the requirements for testing the hypothesis are satisfied.

Step 2

*The hypotheses are given below:*

*Null hypothesis:*

*H*0 : *p* = 0.48

*Alternative hypothesis:*

*H*a : *p *≠ 0.48 (Two tailed test)

**Obtain the sample proportion:**

The sample proportion p hat is **0.305 **(=244/800).

**Obtain...**

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