5

# B) A manufacturer of bus engine claims that the life of the bus engine is normally distributed with standard deviation equal to 2.1 years: A random sample ofl12 of ...

## Question

###### B) A manufacturer of bus engine claims that the life of the bus engine is normally distributed with standard deviation equal to 2.1 years: A random sample ofl12 of these engine has standard deviation of1.8 years Test the hypothesis that the standard deviation of the life of the bus engine is smaller than 21 years at 5% significance level (5 marks)[15 MARKS]

b) A manufacturer of bus engine claims that the life of the bus engine is normally distributed with standard deviation equal to 2.1 years: A random sample ofl12 of these engine has standard deviation of1.8 years Test the hypothesis that the standard deviation of the life of the bus engine is smaller than 21 years at 5% significance level (5 marks) [15 MARKS]  #### Similar Solved Questions

##### 2 3 8 ] 3 1 1 I } 1 8 7 1 3 {11 1 L 3 1 3 8 8 [ 8 2 U 1 3 3 8 3 3 3
2 3 8 ] 3 1 1 I } 1 8 7 1 3 {11 1 L 3 1 3 8 8 [ 8 2 U 1 3 3 8 3 3 3...
##### Lel 5? @ P keki PCGL=e} shew + 0 TS 0 SubspoCe Ralkl eFPack) En a baSis U ba Sis D i PPch) I Exlexd #e bascS of_P (ry ~t 0 a efece) Find 0 Subs{ace_W PakQ}= UeA such H
lel 5? @ P keki PCGL=e} shew + 0 TS 0 SubspoCe Ralkl eFPack) En a baSis U ba Sis D i PPch) I Exlexd #e bascS of_P (ry ~t 0 a efece) Find 0 Subs{ace_W PakQ}= UeA such H...
##### Wnat happening Ihis picture What k showine what do the lines ard symbols represent? Explain words Using the corcepts have Fone the cljss.3 7 ekch Mn V, 1| 8. ' 416. { 6 Ve} MV x 13+4E1 "" - |4' 4 |
Wnat happening Ihis picture What k showine what do the lines ard symbols represent? Explain words Using the corcepts have Fone the cljss. 3 7 ekch Mn V, 1| 8. ' 416. { 6 Ve} MV x 13 +4E 1 "" - | 4' 4 |...
##### (a) Find parametric equations for the line of intersection of the planes x + Y + 2 = 5 and x + Zy + 72 = 5_(x(t) , y(t) , z(t))(b) Find the angle between these planes: (Round your answer to one decimal place:)
(a) Find parametric equations for the line of intersection of the planes x + Y + 2 = 5 and x + Zy + 72 = 5_ (x(t) , y(t) , z(t)) (b) Find the angle between these planes: (Round your answer to one decimal place:)...
##### Hutfer s ultion cont 50.250 Khca_ And0175 Mo wtR thepHat thebulle Folutlan?(bl 00125 npjes 0r hdrochloric acid arc sldcd to 2500IL&t Lles bulter, whst B the 0t neslnn , ltkn? (Assune trat tne wnluimo d>e upon ucJin pjtussiunitretrurde ik HCOi 56*1C Must show Ycur "Drk (Ecraton 'exeer ) COe recetvc crcdit
hutfer s ultion cont 50.250 Khca_ And0175 Mo wtR thepHat thebulle Folutlan?(bl 00125 npjes 0r hdrochloric acid arc sldcd to 2500IL&t Lles bulter, whst B the 0t neslnn , ltkn? (Assune trat tne wnluimo d>e upon ucJin pjtussiunitretrurde ik HCOi 56*1C Must show Ycur "Drk (Ecraton 'exee...
##### 4lie4 u~nro4#-es 00 |uel eiL
4lie 4 u~nro4#-es 00 |uel eiL...
##### The U.S. trade deficit at the beginning of 2005 was $$475,000,000$$. If the wealthiest $1.00 %$ of the U.S. population $(297,000,000)$ contributed an equal amount of money to bring the trade deficit to $$0$$, how many dollars would each person contribute? If one of these people were to pay his or her share in nickels only, how many nickels are needed? Another person living abroad at the time decides to pay in pounds sterling ( $mathrm{f}$ ). How many pounds sterling does this person contribu
The U.S. trade deficit at the beginning of 2005 was $$475,000,000$$. If the wealthiest $1.00 %$ of the U.S. population $(297,000,000)$ contributed an equal amount of money to bring the trade deficit to $$0$$, how many dollars would each person contribute? If one of these people were to pay his o...
##### Which ofthe following vector functions does have R {1 } ( all real numbers except 1) as its natural domain? r ( t ) 1n It -1/i + (t2 + 1) j + et k 0 ar ( t )et + 1 1tan t jt2 k0c r ( t )(si/ ) 1 + sin t j + t k d,r (t ) = et-1 i + ( t2 _ 1)j + k e r ( t ) = Sint i + cot tj + St k
Which ofthe following vector functions does have R {1 } ( all real numbers except 1) as its natural domain? r ( t ) 1n It -1/i + (t2 + 1) j + et k 0 a r ( t ) et + 1 1 tan t j t2 k 0c r ( t ) (si/ ) 1 + sin t j + t k d,r (t ) = et-1 i + ( t2 _ 1)j + k e r ( t ) = Sint i + cot tj + St k...
##### Questions 13 and 14 apply to the following reaction: 2 HNOz(aq) + NO(g) 43 NOz(g) + HzO() AG"f (kJmol at 25"C) -110.9 87.6 513 -237.113) Calculate AG" for the reaction at 298 K A) +51.0 kJ B) +188.19kJ C) -34 kJ D) +12.4 kJ E) -40.2 kJ
Questions 13 and 14 apply to the following reaction: 2 HNOz(aq) + NO(g) 43 NOz(g) + HzO() AG"f (kJmol at 25"C) -110.9 87.6 513 -237.1 13) Calculate AG" for the reaction at 298 K A) +51.0 kJ B) +188.19kJ C) -34 kJ D) +12.4 kJ E) -40.2 kJ...
##### Tha cerok EotntLl V b gven 5 a incion Ol c"stanze * (r}by V (3nkaer Sr7 I0rvols. Thevale Of inc derok reuinzvim2vim0 11vim0 6 YimCueetion1puIfAKg u (r = 4.4) Is heated adubatially Irom 0"â‚¬' to I"â‚¬ the Increit It > Intcrnal enerxy will be (Cv 0.I72callkC)719611720J472Cali7196Cl
Tha cerok EotntLl V b gven 5 a incion Ol c"stanze * (r}by V (3nkaer Sr7 I0r vols. Thevale Of inc derok reuin zvim 2vim 0 11vim 0 6 Yim Cueetion 1pu IfAKg u (r = 4.4) Is heated adubatially Irom 0"â‚¬' to I"â‚¬ the Increit It > Intcrnal enerxy will be (Cv 0.I72callkC) 71...
##### Problem 6.point)1. Use the ratio test to determine whether the series Cn 1 -ag" is absolutely convergent; conditionally convergent or divergent:A. None of theseB. divergentC. conditionally convergentD: the test is inconclusiveE. absolutely convergent
Problem 6. point) 1. Use the ratio test to determine whether the series Cn 1 -ag" is absolutely convergent; conditionally convergent or divergent: A. None of these B. divergent C. conditionally convergent D: the test is inconclusive E. absolutely convergent...