A. Construct a confidence interval for p, given the following values. 1. A sample size of n= 12, X = 40 with population standard deviation ở = 6 at 99% confidence level. %3D 2. A sample size of n=25, X = 7.2 with population standard deviation o=2.6 at 90% confidence level. 3. A sample size of n= 32, X= 85 with population standard deviation o = %3! level. 14 at 95% confidence 4. A sample size of n=40, X = 123 with population standard deviation o= 36 at 90% confidence level. %3D 5. A sample size of n=65, X = 1353 with population standard deviation o = %3D 123 at 95% confidence level. 6. A sample size of n= 112, X= 40.1 with population standard deviation o= 1.6 at 99% confidence level. %3D 7. A sample size of n= 125, X=825 with population standard deviation o = 116 at 94% %3D %3D confidence level. 8. A sample size of n=200, X = 101 with population standard deviation o=26 at 96% confidence %3D level. 9. A sample size of n= 300, X = 3.25 with population standard deviation o =0.75 at 99% !3! %3D confidence level. 10. A sample size of n=400, X=8.20 with population standard deviation o = 2.35 at 99% confidence level. %3D %3D

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1a 9 and 10
A. Construct a confidence interval for p, given the following values.
of
se
le
1. A sample size of n= 12, X = 40 with population standard deviation o=6 at 99% confidence
%3D
level.
2. A sample size of n=25, X = 7.2 with population standard deviation o=2.6 at 90% confidence
%3D
level.
3. A sample size of n=32, X= 85 with population standard deviation o = 14 at 95% confidence
level.
%3!
4. A sample size of n=40, X = 123 with population standard deviation o= 36 at 90% confidence
level.
5. A sample size of n= 65, X= 1353 with population standard deviation o = 123 at 95%
%3D
confidence level.
6. A sample size of n = 112, X= 40.1 with population standard deviation o = 1.6 at 99%
confidence level.
%3D
!3!
7. A sample size of n= 125, X= 825 with population standard deviationo = 116 at 94%
!!
%3D
confidence level.
8. A sample size of n=200, X= 101 with population standard deviation o=26 at 96% confidence
%3D
level.
9. A sample size of n= 300, X =3.25 with population standard deviation o = 0.75 at 99%
confidence level.
!3!
10. A sample size of n=400, X = 8.20 with population standard deviation o = 2.35 at 990%
confidence level.
%3D
B. Solve each given problem below. Show your solution and state the interpretation for your answer.
1. The average height of a random sample of 200 people from one barangay is 1.6 m.
It is known that the heights of the population are random variables that follow a normal
distribution with a variance of 0.16.
average height of the population.
Determine the interval 95% confidence for the
Chapter Four Estimation of Parameters 121
Transcribed Image Text:A. Construct a confidence interval for p, given the following values. of se le 1. A sample size of n= 12, X = 40 with population standard deviation o=6 at 99% confidence %3D level. 2. A sample size of n=25, X = 7.2 with population standard deviation o=2.6 at 90% confidence %3D level. 3. A sample size of n=32, X= 85 with population standard deviation o = 14 at 95% confidence level. %3! 4. A sample size of n=40, X = 123 with population standard deviation o= 36 at 90% confidence level. 5. A sample size of n= 65, X= 1353 with population standard deviation o = 123 at 95% %3D confidence level. 6. A sample size of n = 112, X= 40.1 with population standard deviation o = 1.6 at 99% confidence level. %3D !3! 7. A sample size of n= 125, X= 825 with population standard deviationo = 116 at 94% !! %3D confidence level. 8. A sample size of n=200, X= 101 with population standard deviation o=26 at 96% confidence %3D level. 9. A sample size of n= 300, X =3.25 with population standard deviation o = 0.75 at 99% confidence level. !3! 10. A sample size of n=400, X = 8.20 with population standard deviation o = 2.35 at 990% confidence level. %3D B. Solve each given problem below. Show your solution and state the interpretation for your answer. 1. The average height of a random sample of 200 people from one barangay is 1.6 m. It is known that the heights of the population are random variables that follow a normal distribution with a variance of 0.16. average height of the population. Determine the interval 95% confidence for the Chapter Four Estimation of Parameters 121
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