Worksheet3Solutions

Worksheet3Solutions - Name: BusMgt 330 Take Home Assignment...

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Unformatted text preview: Name: BusMgt 330 Take Home Assignment Due Monday (Feb 14th) at the beginning of class 0 Up to 20 points will be deducted for “unprofessional” work. By signing below, I attest that l have performed this analysis. I understand that any violation of this statement by handing in another student’s work as my own will result in a suspected case of academic misconduct. Signature: Date: Do not write below this line 1. Consider the following hypothesis test: n1 = n2 = p-hat1= 0.65 p-hat2= 0.55 OL = 0.10 a. What is the appropriate test statistic ("Z” or “t")? if the appropriate test statistic is also indicate the degrees of freedom. I b. What are the value(s) of the critical statistic? Express your answer to 3 decimal places. Answer must be 3 decimal places to receive i Mat/5 3 c. What is the value of the observed statistic? Express your answer to 3 decimal places. Answer must be 3 decimal places to receive 0 —| ('D O. F'- 0 fl (D Q. :- fi/(Yé'f 3 d. "Reject" / “Do not reject" null hypotheses? i “A 2%,: _ti’:-@3“(Prb) —L@+ 4340'ng hi hi (my: 0.56“) v (w) @viflozx + @2me as?) 500 “ M747 ll Do not write below this line 2. Consider the following hypothesis test: a. What is the appropriate test statistic (“2" or “t”)? If also indicate the degrees of freedom. I b. What are the value(s) of the critical statistic? Express your answer to 3 decimal places. Answer must be 3 decimal places to receive credit. I ~a.3;té c. What is the value of the observed statistic? Express your answer to 3 decimal places. Answer must be 3 decimal places to receive credit. 01. "Reject" / “Do not reject” null hypotheses? 3. Consider the following hypothesis test: 4. Consider the following hypothesis test: n2=16 x1: 34 x 2: 39 s1 = 14 l s2 = 16 a: 0.10 l Assume (:1 =02 a. What is the appropriate test statistic ("2" or “t")? a. What is the appropriate test statistic ("Z" or “t")? if also indicate the degrees of freedom. If also indicate the degrees of freedom. 13. What are the value(s) of the critical statistic? b. What are the value(s) of the critical statistic? Express your answer to 3 decimal places. Express your answer to 3 decimal places. Answer must be 3 decimal places to receive Answer must be 3 decimal places to receive credit. credit. i rm 3 c. What is the value of the observed statistic? c. What is the value of the observed statistic? Express your answer to 3 decimal places. Express your answer to 3 decimal places. Answer must be 3 decimal places to receive Answer must be 3 decimal places to receive credit. credit. d. “Reject” / “Do not reject" null hypotheses? d. “Reject” / “Do not reject" null hypotheses? .. 42:: @234wa 30% (y, ,2.) mix.) h Hfl— fl—‘n— . tr . 0772- (Vt-(75ft (Ivy/mm hf, ' m * :3; \, hn‘m ~01 "’ "r (mm—(>7) =G’H9l—I 2:3. 12 XI foo laé’ (mat/V4 /§)(/¢)‘ ,- J' _ _ , I! 30 23/; + L w £2.03} : “Ix/0'49 Do not write below this line 5. A sample was taken to observe the occurrence of certain defects in different automobile models. (J A; : (K4w5’ /) C(olu/nny *1) Automobile _: _D (34) Z 32 it; : ‘l Determine if defect is independent of the automobile . 1 Z [461‘ * {P‘P ‘1 model. X 3 Expected Counts [2 point per (bold) box] Em" 3‘“ . 2. ( a) I. : WW + t 20 "J 3 W KD’L .L (7—031 + + L.” ;.-—-—-' _ H7 ,0 it) 0))" .1 7 u( _ 1— + in #03 t ,i 0 Degrees of Freedom [2 points] N Li (0 __. q+u+l+q+l+m+0+9+9 Observed Chi-Squared Value [3 points] (0 5,9000 4, When on = 0.05. the critical Chi-Squared Value is 9.4877. : Should you “Reject"/“Do Not Reject" Ho? [2 points] 7;) D N K : 537 Do not write below this line Given the information below: Determine the Zcrmca. value for the hypothesized distribution. Express your answer to 3 decimal places. Answer must have 3 decimal places to receive credit. @314 Calculate ficmicafl Express your answer to 3 decimal places. Answer must have 3 decimal places to receive credit. 0493 Calculate Z1 for the actual distribution. Express your answer to 3 decimal places. Answer must have 3 decimal places to receive credit. Oc‘l‘lLlO Using the answer in part (c) rounded to 2 decimal places, calculate Type II (B) error. Express your answer to 4 decimal places. Answer must have 4 decimal places to receive credit. 0 58?? Calculate power of the test? Express your answer‘ to 4 decimal places. Answer must have 4 decimal places to receive credit. Otllgt/ 4 I l I I e. Do not write below this line H {3, Four ;/—l6 ; /VO(?3?$ O. /é>// ...
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This note was uploaded on 03/10/2012 for the course BUS MGT 330 taught by Professor Schroeder during the Spring '08 term at Ohio State.

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Worksheet3Solutions - Name: BusMgt 330 Take Home Assignment...

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