Question 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*00LL

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Asked Dec 18, 2019
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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 244 of 800 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= 0.01 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 is
5% of the population size, and the sample
%3D
the requirements for testing the hypothesis
satisfied.
What are the null and altemative hypotheses?
Но
versus 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 =
%3D
O 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 PM
12/18/2019
DELL
F12
F10
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F8
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F6
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F4
F3
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F1
Num
PgUp
Home
Insert
Backspace
Pause
Break
Scroll
Lock
&
Screen
8.
PODn
End
Delete
Home
Tab
Enter
Caps Lock
Shift
Shift
Ctrl
Fn
Alt
Alt
Ctrl
*00
LL
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Question Help 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 244 of 800 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= 0.01 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 is 5% of the population size, and the sample %3D the requirements for testing the hypothesis satisfied. What are the null and altemative hypotheses? Но versus 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 = %3D O 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 PM 12/18/2019 DELL F12 F10 F9 F8 F7 F6 F5 F4 F3 F2 F1 Num PgUp Home Insert Backspace Pause Break Scroll Lock & Screen 8. PODn End Delete Home Tab Enter Caps Lock Shift Shift Ctrl Fn Alt Alt Ctrl *00 LL

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Expert Answer

Step 1

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

In this case, np0(1-p0)= 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:

H0 : p = 0.48

Alternative hypothesis:

Ha : 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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p- p p(1–p) >(1- п 0.305 – 0.48 0.48(1 – 0.48) 800 = -9.91

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