Exam 1 Review-3320 - Exam l Rcvierv Annual pe-r capita consurnption ul'rnilk is 2 I.6 gallons rvith a statrdarel dcviatiorl of 4.8 gallons lleing fiom

Exam 1 Review-3320 - Exam l Rcvierv Annual pe-r capita...

This preview shows page 1 - 3 out of 6 pages.

Exam l Rcvierv Annual pe-r capita consurnption ul'rnilk is 2 I .6 gallons rvith a statrdarel dcviatiorl of 4.8 gallons. lleing fiom thl Mid*.est. 1,ou bcli*vc nrilk cunsunrption is higher thcrc and wish to stlppofl your opin[rn. A sample o{ 30 irrdivicluals lrom thr.- Ivlidrvcstcnr to$'n ol'Wt-'bster Oit-l' showcd a sample mcatl annual cousurrrption ol'2'l- I gallons. l. Which h.v*p<ltheses can be uscd to dcternrirtc rvhetlter tlis utcatr annual consrrmption in Webster Cit1" is highcr tlran thc national tneatt? A) FIo: pt > 21.6 lla: 1t <21.6 i B] j l-l*: Fr 5 21.S l,irj ****_/ Ha:F>?1.6 \ \ utt*** |o'\** J f.) I-l*: [t : 21'fi Ha: ;l nut cqr:itl t"* 21 -6 2, What is thc valu* of thc tcst litittistic'? A) 0.52fi& ffiH-ss?T c) 2.48*fi 3'. $dflat is ttre p-vsl*c? ___H, {*"ffi; c) n) Ft f -#' L. a -'} ffiqL? Lq t p "t t #[email protected]@.a&*n#r****T{ t *l i*o t- - vq l* t - .$978 .002? .993r+ .?s56 4. At u = "il1. rvltitt iS ytltlr Ctlllclttsiertt'l ffikoe*tH*. H) *c n*t reje*t H*. r* u*\u{:.c'3t2 { #(: -ftI p*tt'L + t{a' Accordipg to thc Narticnal Automobilc- Dealers Association. the mcatr pricc ftrr uscd cars is $ 10,I qi. * Irlana-qer of a Kansas Citl' used car dealerslrip revicrved n sarnplc o[ 50 rccent usetl car sales at tfic clealcrship in an i]ticnlpl to dctentrine lr4tcther tlre population mean price for used cflrs ar tlris 1:articular tlealcrship dift'ered from thc national mean' 'l'he saprplr slrou.cd u nlciul price ol'59.750 n'irh a samplc standartl deviation of 1.400' {} lss t t
Image of page 1
5. What set ol'h1'potheses can lre usetl to deternrine t'hetlrer a difference exists in tlrc mcan ----.4-------.d *#' ,-.*Fr+e f*r used *&rs at"{he dsalsrship? f ilhu,p*10, l$2 t \di"'d;: F * I*, ls] T 4 b' rr \ '!r t* J J { rst blH*: Ft h [fi,1q3 H;r: i.t < I0, I S} { *,*,, fl .*. t ,a - le "1 l.'* t *)Hs:p{[*,]*3 Hn: rt F IS,1$3 dlHu; !r t I*-l$? Hn: trl : t*rl$z S. $dh*t is the value *f the test statisti*? *) -fi.3 I 57 *a*- jF"a #%t, L*h.L;l .-)324 c) - 1 .fi?95 _tr": x* .mi** I q+ ti ,L.e3?t ffi J tf s{J tu tql A L h#,* 'o!!i!**ail+de.**{Fi,s ,, J d-' n r*o*f tI ss 7, \Vhat [s t]rs p-v*tue?
Image of page 2
Image of page 3

You've reached the end of your free preview.

Want to read all 6 pages?

  • Fall '12
  • RicardoTovar-Silos
  • Trigraph, iL, anl'dilference irr thc, caru tr,ith thc, thc tcst, n*t reje*t H*

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes