{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

test4key2 - 9 All Emmi has two independent samples Cine...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 9. All Emmi has two independent samples. Cine sample has n 1variance of Ell and a size of Ill. The other sample has a variance of 12 and a sample size of 12. Estimate the degrees of freedom. l2.— 3 2 %+ (2H) .._.___ ‘3 .. —~—-—— = .2... £16393” la 10-1 1. a) II wants to +s£el if them is a difference between the heart rate at individuals that drink decafleinated coffee and those dial: drinlt regular cofi'ee. He collects a sample of three deeafieiuated coflee drinkers and four regular coifee drinkers. Calculate the test statistic, state the critical value, come to a conclusion about the null hypothesis, and state what the conclusion is about the relationship hetweea caffeine and heart rate. ' «:2 7.1‘ __ ""3— _ ecaf Re 31' t A r: fl __,__ 7" ?fifi Ha “-‘1‘ w as -~t1 12: 1. +1531! 5:51 a a s s “-3. a a “r 16 “Li 9, I 11 #13,;1 _ Haip'TZJE’ECY' «f5: . $4: ,5 _ _ 551.} 3 .- [C3 TZ) MW cWLE’Afi-E 13-13. KEN—'6 believes that long distance runners do better ifthey take energy gels. than if the).r dim' t She took a simple random snmpl e , of 5 nmncrs and recorded their finish times with and without gels Calculate the test stat-i stic criti cal value and state whether Kate should reject DI tail to reject the null hypothesis. Theo state 1nirhnl. this means with regards to the use of gels. M Without Wrth 5. “3&3! a: 50 47 52 41 ~+ri ' S 2.5 3: :3 ,2; e 3r. fins“: $.53 5“ t :1 :3, i ‘EE 2 We Q E? The mafiafiffi 14-15. Jamie wants to see who has longer hair, Northern or Southern Uahihrnisns. He gets a simple random sample of four Southern Califomians and another simple random sample of four Northern Californians. Please calculate the test statistic, state the critical value, shite whether Adam should reject or fail to reject the null hypothesis, and than state what that means with regards to this specific experiment. . '55 __ l. S EEEEEIE Sogiern ': . -— 29 36 a - H 1Z1 fittlgfi; “*‘lC’ t H32 li- 3:30 i [.6 :5 like :15: l3 l9? asst—sagas: 3?:- E m 7s] 2'54 16. Whtm we shite that there is humanity of variance, precisely which variances are hermigeneous'i‘ Lac words, not a 1?. Oh, we' re hart enough test for now. Here are it! free points. 13. Wt? YUM want 10 more Free points? Dita)", here the}r are. You still have to cross oft-thrice other quot-aliens. . ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    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.

    Student Picture

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

  • Left Quote Icon

    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.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    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.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern