HW5Sol - STAT 3011: Hemewerk 5 Selutiens Instructer: Allela...

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Unformatted text preview: STAT 3011: Hemewerk 5 Selutiens Instructer: Allela Juhncen till! Frel'it and the weather: a] it Plat! flulttllltltl tifi't'l $5tLtttHl tilt! Sill] tltJll , U.ltl b} PIE ‘3 $5ll.lll§lfl} — l’tX — SSllJJllfl at X SEtlJttlll} ‘- ll.2ll + {Ht} = ti..'lfl. c} y 4 HtJ.lllllltll.TlJl 't Slllllltlttlllll + EllJltlllttl. Ill] " Gilliam. 'l'he wheat liirmer‘i-i expected prufit lt-t Shiflltltl. d} It Plat} $TTJHHI [Lia $47~llllll {lull} ~Eli'llllllll {Ht} ,ti ' T7.lllllltll.?ll} 1 4T.llllt}[ll.2lll 1" 3T.Ullll[ll.llll " filllllll. With the insurance policy. the farmer‘s expected parent is filialfltit}. The insurance ptiliey actually.r teaulta in a ltiwer eapectetl prelit let the farmer. I- ll- |'t|-||.nI-.-IIIH'\ Ht l.l|l\ .Il llI' p 1 I lII‘t. .l ..I I i l-l'~:.'l‘t..||| M at .l. .5-.1 I1"it.|I|-l.trl.lt"-I.'.'III|1.|l‘-I'- 'rl'll'tHI-Illh” l"’ H III. '"1.'.l'l|:'\ 't..| .ii i|--er1..iII.-:: I. .:'. :t.i-.t ti;\l-=llll.Il-.l-l|."-|-|:|‘-"|1"|-|"~"-'ll|'|l'-.'1'-' :' Ii | "l 0,13% Disc“ (3.20 z-aeere fer right-tail probability: a} A right—tail ptebabilit}.f ia Elfitit‘ifllfllfltl with a cumulative ptebability affififl. When we leak up 0.312} in Table A. we find a :-acere £0342. b} In each case. we subtract from H] to fintl the cumulative probability which we then leak: up in Table A te find the :-scete: ti] 1.614 til} 2.521: 6.22 6.26 6.27 6.34 Female heights: 2 = (.t - alto= {E12 — 6515.5 —tl.l~it’1.whieh eorrespontis to a cumulative prohahilitv ofti.l94ii. Thus. [H95 of adult females in North America would not he tall enough to he a flight attendant. Apartment rentals: at : -— [.r lat-"n — tltJtiti "ttitilr' | EU ‘- 2 which corresponds to a cumulative probability oi'tiHit. therefore the pruhahilitgtr that the retttal rate is at least Sltititi a month is | {if-lit = ti.ti2. h} : " tv- min [Stiti ?tJtii-"15ti= -| .33 which corresponds to a cumulative probability ut'tl.ti‘i. therefore the |:trol:ethi1it:tr that the rental rate is less than Sfititi a month is ti.ti£i. cl Ptfititi s; X 1' Ititlti} -— [’{X *2 Itititi} -- PIX --’-' Stilii. Using parts {it} anti {h} we tlnti this pro‘t'iahilit}f to he tiflil titl‘i = tilt“). Thus the prohahilit},t thttt the rental rate is between .‘EStiti and $|titlti a month is about use til the :-score that corresponds to a cumulative probability ol'tl. It]I is -i.2lt. .'t' 'it + :o -- Till] I t-l .EHH I fill]: fitil-t. llence Iti'h: ol'rentai rates are below $5tilt a month. MD]: a} ti} : t.v ltil-"n {1 2t} Milli-"ill! |.25 which corresponds to a cumulative probability of “£94. Subtractetl from Lil. this indicates tltat the proportion ot'ehildren with Mill ol‘ at least 12ti is little. {iii : I [.r -- mm s' {till ltitili'lh = 4.25 whiclt corresponds to a cumulative prol'tahilitt,»r ni'tilt'Jtl. Suhtractetl from Hi. this indicates that the proportion oi‘ehildren with MUl ot'at least tit} is H.394. h} The :-seore corresponding to the 99'“ percentile is 2.3 3. To find the value ul‘x. we calculates- '—' n + :n — ltitl r t2.33]t lhi I313. cl The :-seore corresponding to the I"t percentile is -2.3 3. To find the value ni‘t‘. we calculates —- ,u + :e —' Ititl + tv2.33ltifi} = fil'l. More ESP {1 i There is other! number nf'n'inls. There is indeed a listed nutnher of trials in this experiment tn L 3}. {2] Each tt'irn' new rwu possible outcomes. This is true in this experiment; either John Doe correctly identities the number or he does not. {3} The tends are t'nrt'epenrlent alone nimrner. This is also true in this experiment: the outcome of one trial will not affect the outcome ot'another. [4} lite pi'ohrrhilttfv ofsnt'eea's it the .strriiefor each trial. This is true in this experiment; for each trial John Doe has a 1 in 5 chance ot‘picking the correct number [p = 0.2m. ...
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This note was uploaded on 10/02/2011 for the course STAT 3011 taught by Professor Wang,zhan during the Spring '09 term at Minnesota.

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HW5Sol - STAT 3011: Hemewerk 5 Selutiens Instructer: Allela...

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