Question

Just need answers to the two questions with red x's. Please don't provide the same answers, as they are clearly wrong.

2 The mixture nil not be usec unless eoerimental e dence indicates ccndusively thst the strength specfication has been A moc ure of pulverized fuel ash nd aortand cement to be used or grcuong should have cumpress we srength of one than 1JU0 KN/ strength for specimens cf this ixture is normally cistriJutec w ch U-63. Let μ denote the true avereg compressive strength. et. Suppose oorroressive ) What are the appropriate ull and slternative hypotheses? a -1300 H0: μ-130D Hai 1300 H0: μ-1300 1300 a-300 (D Let X denote the sample avcrge campressive strength tarn 11 randomly sc ccted spodmans considerthα test procedure wit test statistic Xitself nat stancardizod what is the pro ability dstrlautlan at the test statistic when H is true The test statistic hes an exponential distribution The tast statistic has a binam al distibution. The test statistic has a ge ข distributor. The test statistic has a romal distribution. f x 1340, find the P-velue (Rourd your answer to four decimel places.) P-vlue 221058x Should Ho he rejected using a signincance el 0.01 o reject Ho do nct reject Ho distribution of th test stedstic when μ-1350 The test statistic has an exponential cistribution The test statistic has a biamial distribution The tast statistic has a gamma distribution. The test statistic has a rormal disrbution. State the mean and standard deviation cr the test stat stic.くRound ycur standard ceadon ta thre dedmal placs.) stenderd dev etion ,8006 、KN/m2 For a test with口一0.01, what is the probability that the mixture will be judged unsatistactary when in fat μ-13sa (a type tr cmur)? Round your answer to tour dadmal places. KN'm

Answer 1

x-M 之= e 340 1300 z= 531 ue ue one- tailed et 2.33 (ท.toal vabu= tle a泓t tuled ー~ N (1350, 53m) = s@33 + 쁨諪) ーφ (e. 33-3-129 53J 0788