{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# Week7 - claim Ho Ha siglevel m<=230 m<=230(claim m>230 0.05...

This preview shows pages 1–3. Sign up to view the full content.

claim m <= 230 n= 52 < = 30 large sample use z dis x-bar= 232 Ho m<= 230 (claim) s= 10 Ha m>230 sig level 0.05 large sample z dist 95 0.05 rejection region 1.65 critical Zc Reject Ho if z> 1.645 large z=  (x-bar- m)/alpha/sqrt n 1.44 (232-230)/(10/SQRT(52)) fail to reject There is not enough evidence to reject the company’s claim that there is at most 230mg of sodium example from week 7 ppt claim  m=  8 n= 58 xbar 7.8 Ho m=8 s 0.5 Ha m not= 8 sig level 0.05 large sample n=58 two tail test 0.03 0.03 -1.96 1.96 reject our Ho if Z <-1.96 or  Z>-1.96 Z= (Xbar-m)/(alpha/sqrtn) -3.05 (7.8-8)/(0.5/SQRT(58))

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

View Full Document
it's in the reject area, reject Ho There is enough eveidence to reject the claim that the average of phone calls is 8 min at alpha=0. example from ppt Hypothesis testing with P value a manufacturer claims that its rechargable batteries are good for an average of more than 1,000 c claim = 1000 n= 100 Ho<= 1000 xbar= 1002 Ha> 1000 s= 14 Alpha=0.01 large sample z dist 0.99 0.01 2.33 Reject Ho if z > 2.33 z=
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