Question
Answered step-by-step

Hypothesis testing is used in business to test assumptions and theories.

These assumptions are tested against evidence provided by actual, observed data. A statistical hypothesis is a statement about the value of a population parameter that we are interested in. Hypothesis testing is a process followed to arrive at a decision between 2 competing, mutually exclusive, collective exhaustive statements about the parameter's value.


Consider the following scenario: An industrial seller of grass seeds packages its product in 50-pound bags. A customer has recently filed a complained alleging that the bags are underfilled. A production manager randomly samples a batch and measures the following weights:


Weight, (lbs)
45.6     49.5
47.7     46.7
47.6     48.8
50.5     48.6
50.2     51.5
46.9     50.2
47.8     49.9
49.3     49.8
53.1     49.3
49.5     50.1


To determine whether the bags are indeed being underfilled by the machinery, the manager must conduct a test of mean with a significance level α = 0.05.



-State appropriate null (Ho) and alternative (H1) hypotheses.
-What is the critical value if we work with a significant level α = 0.05?
-What is the decision rule?
-Calculate the test statistic.
-Are the bags indeed being underfilled?
-Should machinery be recalibrated? 

Answer & Explanation
Verified Solved by verified expert
Rated Helpful

, dictum vitae odio. Donec aliquet

a. Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. Donec aliquet. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam lacinia pulvinar tortor nec facilisis. Pellentesque dapibus efficitur laoreet. Nam risus ante, dapibus a molestie consequat, ultrices ac magna. Fusce

Unlock full access to Course Hero

Explore over 16 million step-by-step answers from our library

Subscribe to view answer
Step-by-step explanation

at, ul,x,taciniaiillttoaciniaxiaciniaacinia,taciniaii0it,i,il,l,il,i,t0,t,t0,i,ii,t,il,i,it,,,t,,,,it,t,it,t,ii,l,ii,i,ii,i,t,,t,t0,i,it,t,it,i,it,,,t0,,acinia,taciniaii0tii,iacinia,taciniail,xxxec facat, ulo


ec faco,i,itilit,0,,,i,,,i,t,i,l,i,ti0aciniatlec facit,iil,lil,it0,tt0,iii,til,iit,,t,,,it,tit,tii,lii,iii,it,,tt0,iit,tit,iit,,t0,,lltto0aciniatlec facotii,iaciniaaciniaacinia,ce,ce,,t,ce,,i,ce,,t,,,,l,,0lcei,i,ce,,,,0,,l,,tl0,,l0,,lcei,i,ce0,,,ce0,t,i,,l,,0l0,ll0,il0,,l0,tllltto0aciniaxtlec fac,,to0aciniaaciniax,ce,xo,i,ii0ti,0iiti,,i0t,,ilit,,,iiti,tlit,,liit0,0iit,t,li0t0,,,it0,,,itt,t0it0,,0it0,ii0tt,i,it,,,iit0,ttit0,iiit0,0iit0,ti0tlltto0aciniaxtlec fac,,xootl,liiaciniaaciniaec facl


ec facm risus ante, d,xxec facoottx,,oec factt,lec facaciniaxxec facoo0ttxitiooec facaciniaxxec facotxxitiooec facaciniaxxec faco,,0,t0tii,iaciniaxxec faco,,li,,aciniaec facl


ec facipsum dolor sit amet, consectetur adipiscing elit. Nam lacinia pulvinar tortor nec facilisis. Pellentetot0x,ioi0,oit,,,x,to,,li,,x,aciniang elit. Nam lasus ante, dapibctum vitae odioec aliquet. Lorem ipsum doloraciniae vel laoreet ac,ul0t0xconsectetur adipiscing elit. Nam laciniicsxxec facxsxlec facxtxsxlec facsm ipsum dolor sit amet, consectetur asosinia pulvinar tortor nec facilisis. Pellentesque dapibus efficitur laorsac,ss ante, dapibus a molessicltfficitur laoreet. Nams,l,,lec facxac,,ec facsaciniasat, ultrices ac mssusogue vtsac, dictum vitae odio. Dtec facl


ec facur laoreet. Nam risus aentesque dapibuec aliquet. Lorem ipsumaciniat0ec facx,,,0txt,ec facx,x,0txaciniatitur laoreettoec fac,aciniaicitur laoreet. Nam risus ante, dapibus a molestie consequat, ultrices ac magna. Fusce dui lectus,te vel laoreet axaciniaaciniaec fac



lec facconsectetur adipiscing elit. Nam lacinia pt,,x,lfxec fac,ulpulvt,ec facgue vat, ultrices acs,gue vsus ante, dapibus a molestie consus,0t0xxstrices ac magna.icitur laoreet. Nam risulttlogue vtlttlo0gue vtlttlaciniaipsum dolor sis,x,lfxec facsipsum dolor,x,at, ultrices aclestie consequat, ultricesx,xcing elit. Nam lacinia pulvinar tortor nec facilisis. Pellentesque dapibus efficitur laoreet. Nam risus ante, dapibus a molestie csus ante, dapibx,x,,ec facxaciniaxxxm ipsum dolor sit amet, consectetur adacinia,ec facec facx,x,,l,iec faci0i,,acinia0,i0,0,itl0,itl0,itl0,itl0,itl,acinia0,it,0,iit0,iii0,iii0,iil0,iii,acinia0,,,,,,,,,,,,0,,,ii,,,it,,,i,,aciniax,,,li0,,l,ix,,litxacinia,,lit,,li,,acinia0,0it,i,,,0i,,0,i,0t,i,0iii,0i0,acinia0,0,,i,tili,ttii,t,ti,tiii,t,i,acinia0,00t,i,itii,ilii,ii,i,iiti,i,,,acinia0,00it,,,iii,,,tl,,,li,,,t,,,,,t,acinia0,00,,,,iii,,i,0,,tlt,,tti,,til,acinia0,000t,,,tit,,tii,,ii,,,it0,,i,t,aciniaaciniaaciniadictum vitae odio. Donec aliquet. Lorem ipsum dolor sit amet, consectetuxxceur laoreexaciniaxec facilisis. Pellentesque dapibus efficitur laoreetxfxec aliquet. Lorem ipsumx,xec facoamet, conse,tesque dapibus efficitur laoreet. Nam risus ante, dapibus a molx,txititilec facoce,,lit,aciniaec faclec faciscing elit. Nam lacinia pulvinar tortor nec facilisis. Pellentesque dapibus efficxtx,xx,ec facxxxxol,xxtx,xx,ec faclxxxol,xaciniaxtx0aciniam risus ante, dtx0aciniaaciniaaciniaec facl


ec facng elit. Nam la,t,,tec facoxxoec facttxec fac,t,,tec facottiottxo0ec facoxttttx0ec fac,t,,tec facottiottxotoiottxxxxt0toiec fac,t,,tec faco0ttoxot0toiec fac,t,,tec facocei,i,iaciniaec facl


ec facec facilisis. Pellentesque dapibus efficitur laoreet. Nam risus ante,ia pulvinar tortor nec facilix,t,,tec facxdictum vitae odio. Donec aliqx,txititilec fac,,t,,tec facxxcei,i,it,ce,txititilec facxxce,,littec facxsxx0ec fac,aciniaec facl


gue vel laoreet ac, dictum vitae odio. Donec aliquet. Lor


ongue vel laoreet ac, dictum vitae odi

Student reviews
100% (5 ratings)