Question

To ob ai information on the corro on essance properties of ? certain tye o steel conduit 45 specimens are buned in soil or a 2 eer period. The maximum penera on in mis for each specimen s than measured.Yiang a sample average penetration o x conduts were anufactured th the 5pecifkation that true?erage pe et atlon be at rnost 50?ls. They ?ll be used unless it can be demonstreted conclusive y thet the spec cetin has not been met what would you conclude? Use 0.05. State the appropnate null and aiternacive hypothese. 52.8 ? d?sar gia standard de otion o s 4.3 T he @ Ma: , 50 Ha: 50 Calculate the test statiatic and detenmine the P-value. (Round your teat atatoic to two decimal places and your P-value to four decimal placea. P-value- state tha the conclusin in tho elect the nul hypothesis. There is sufficient evidence to concludo that the true average penetration is more than 50 mils. Do not reject the ruill hypothes's. There is not sufficient evidence to conclude that the true average penetration is more then 30 mils Dorkot repea the full hrpotheaa. There I?suurkkift ùvidùncù to concludù thit the true average penetration is more than so mia. | 0 Reject the ful hypothesis. There is not afficient evidence to conduce that the true verage penetration is more than so mils. You may need to tha approprate table ln the AppendiKof Tables to answer this question.

Only need missing info. TIA!

Answer 1