Question

This Question: 1 pt 12 of 12 (5 complete) Arandom sample of 20 ecent weddings in a ceuntry yelded a mean wedding oost of $26 3873 Assume that recent wedding costs in this country ae nomally dstributed wth a standand deviation of 500 Cempete parts (a) rgh ( below a Detemine a 00% conence interval for the mean cost, of all recent weddngs in this oountry The Dt% conddenoe ierval is from to Roung to the nearest cent as neededY b Interpret your resut in pan (a) Choose the comeot anser beow OA The man cost of al recent weddings in ths country is somewhere whin the condence ntea OB e can be 95% oontdent Pal any randomly selected recent wedding ct in ha counry is somewhere within the oonfdence ntva Oc Wean be 9% oonf Pat the samie cot of r OD We can be 9% confdentPat the mean cost of al weddngs in this ouny is smeher wthin e en arva nt wddings in his counry is somewhere wiin Pndene ntenval Does the mean.cost of al recent wddngs i tha sourey nheone nterval obaned paaxpiain your arem OA The posuon an may or may not te in ths inteva aut we can be ip% confdent at does OB Nonce here a % chance tat the popuaon mean does not l in the ounn ra Oc Yes ainos the contdence rerval must onten the sample and popaion means D The ampe mean may or may ner e in ths earval but we can be i% oondent that it does

a randomnsample of 20 recent weddings in a country yeilded a mean wedding cost of $26,368.73. assume that recent wedding costs in this country are normally distributed with a standard deviation of $8100. complete parts A-C below

Answer 1

have 26 36. 73 0018 0. 05 095 1.96 2crit 20.0Sh gs C Now 2cit 26368.J 3 - 2 26 368- 73 f 33 49 98 22 818.75 29918. 7/ eorTR C OP ian B corTect opion