Question

please answer the missing spots

The air t pr bability distributian o the number K af cars and the number ץ cf buses per sgnal c ce at a Prpased lettum lane is displayed in tne accom any ng Oit po bability tale 0.015 0.010 0.025 D.030 0.20 0.050 20.075 0.050 0.125 4 0.060 0.040 0.100 D.30.20 .0so (a) What is the probability that there is exactly ore car end exactly une bus during a cycle? (b) What is the prohability that there is at most one car and at most one bus during a cycle? (c? Wiet is the probebility Lhat there is exactl one car during a cye? Execy one bus? Pexactiy one car - A'exectly one bus) = dSuppass the let-turn lane is to have a capacity af five cars and ane bus is equivalent to three cars. What is the probability af an averflaw during a cyde? e) Are X and Y independent rv's? Explain Yes, because ρΧ, y) + ρχ{x; , pYjy). No, because ρ(x, y) _ ρηΧ)、PAY). No, because ρ(x, y)-AR》 . PW"). 4. + 3/4 points ! Previous Answers DevoreStat97. E.001 Consider a normal population distribution with the value of σ known. (a) What is the confidence level for the interval x 2.88ơNn7(Round your answer to one decimal place.) 99.6 (b) what is the confidence level for the interval 1.49o/vn? (Round your answer to one decimal place.) (c) what value of Za/2 in the CI formula below results in a confidence level of 99.7%? (Round your answer to two decimal places.) Vn 2.97. a/2= (d) Answer the question posed in part (c) for a confidence level of 75%. (Round your answer,to two decimal places.) a/21.15 You may need to use the appropriate table in the Appendix of Tables to answer this question. Need Help? Read ItTalk to a Tutor 1.4 points I Frewlo Answers Devreto9 7.5.013. Mty An article reporec t at o asarrole uf 50 kitchens with gas coc ung appienoes m onitored during ง cne-neek period, t e sarrole m-an CO2 level A2s 651 16, end the samiple standard deviation was 165.05 porn 〔ai Calculate and interpret a 95% !twc-sided: confidence innervel tar true ง-raqe CO2 level in the population cr all homes mom which the sample Aas sniected. (Round Ycur ansers tn two cecirra places.) Fpm e resulting interval. we se 9590 CDntdent that this interval dces not Dontan the true popuston mean. we ae y54。CDntdent that this interval oontansthe true population Tear. We è. wc * 95% confident that the true population m ean lies abov, this interval. 959e conrdent that the e pcpuist cn mean lles below, this interval. b Suppose the rivestigators had made a nigh gues, ar i 79 fy the valu afe befre ale ti dara. what sam 18貝e w*uic be ness to obtain an interval width of 54 ppm or a ca ndens level er 953h? Rourd your anser ip to the r est enale n mber. kitchen You mar need to usa the apprcpMate tablc in the Appandix of Toblas to answcr the quesien. Need Help? EMAİment" S icana implant augm at cn rhinaalast s used tocarrac 2er er ta nase da armities. The sutrass at the prace u e strain :%; "as 26.0, and :he standard dev' ation was 3.3. eo nds o า va cu blar ceaan ca praperdes of h human nas pe steum and ascia. Ara ticla ra arted that er a sample 13 renh aceased a uts, tha mean a ue Horw dues the precictiun cumpere ta te estimate cl late in part ( O The predict cr nterval匕the ssna asthe conncerca Interval In part(a). Tha prodicter YOL may reec to use the appr priste table in tne 'opend Tables to wer this question. Noed Help? tha data corcradict this prior heier? Assumng noaity, teste aparoañate hpothess sing a signifncancs eelrna5. Stata tha appraprians hyathases. H0: μ-360 %"US 360 Calculate the testststistic and determine the n-value. (RDUnd your test statistic to two cecimal places arc your-value to three dec mal places.) Do not eject the "ull hypotess. There is sufficient evidence that true everage escape time exceeds 5 min. Reject tne nui myDYthesis. There is urtident evidence tnsttre overage escape tm: exceeds G Tin. You may need to」se te aaaraareta table in the ApperdX O, Tabes to answer this question.

Answer 1

.= 0,015 r 0°010 + 0,030 t 0.020 0、045 s0.2 ニ 0-5