{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Homeowrk 6 Solution

# Homeowrk 6 Solution - H W6 Solution 6.30 = 1 = 1.5 =.05...

This preview shows pages 1–2. Sign up to view the full content.

HW6 Solution 6.30 1; 1.5; .05 μ σ α = = = Margin of Error (E) = 1 1 4 =.25 2 2 2 2 /2 2 2 ( ) 1.96 (1.5) .25 138.29 139 z n E α σ = = = 6.40 (a) /2 .025 69 ˆ .204 339 .05 ˆˆ(1 ) ˆ 95% . . (.204)(.796) .204 339 (.204)(.796) .204 1.96 339 .204 (1.96) (.022) .204 .043 (.161, .247) x p n p p p z n Wald C I z α α = = = = - ± = ± = ± = ± = ± = (c-1) We are 95% confident that the probability of an adverse reaction to the vaccine is between .161 and .247. (b) 2 2 /2 .025 2 2 /2 .025 2 2 .5( ) 69 .5( ) ( ) 339 ( ) 69 .5(1.96) 70.92 .207 339 (1.96) 342.84 .05 x z z p n z z α α α + + = = + + + = = = + = % /2 2 /2 .025 2 /2 2 (1 ) ( ) 95% . . (.207)(.793) .207 339 ( ) (.207)(.793) .207 1.96 339 1.96 .207 (1.96) (.022) .207 .043 (.164, .250) p p p z n z Wilson C I z z α α α - ± + = ± + = ± + = ± = ± = % % % (c-2) We are 95% confident that the probability of an adverse reaction to the vaccine is between .164 and .250. 6.48 (a) /2 .025 103 ˆ .072 1438 .05 ˆˆ(1 ) ˆ 95% . . (.072)(.928) .072 1438 (.072)(.928) .072 1.96 1438 .072 .013 (.059, .085) x p n p p p z n Wald C I z α α = = = = - ± = ± = ± = ± = We are 95% confident that the probability of contracting an STD within six months after being part of a counseling program

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern