The manufacturer of hardness testing equipment uses steel ball indenters to pene

Question

The manufacturer of hardness testing equipment uses steel ball indenters to penetrate motal that is being ested However the mandacter hinks iwould be betr touse a dumond in es of ma can d between the twotypes ot nderters e's suspected tat te metode w produceenthardess teadngs The metal specitees to be lestedare a ge enough se P. sendebat ca, b ude nmtr' hnnaar NA ormail probability piol and boxplot of the dala indicale hal the deences ane apprunately normalily dbued with no utiers but mnr o CiCk the lcon to view the data table construct a95% condence rteranosudge whet er he two nderen teuansamt neas ene ts, where te dhences are comp edas,ann mi ste..r Rand to the neanenst tent as needet) Stabe the appropriate condusion Choose the comect e below There scient evidence to conclude that the o indenters produce difeent hardness eadings Ther O is nsuicent evidunce to conclude that the twe indenters produce different hardness read Clickto select you Caps Lock Alt Ctrt

Explanation / Answer

As this confidence interval comprises 0, this means there are insufficient evidence to conclude two indenters produce different results.

Given Data Steel ball Diamond Name mean 58.89 60.22 Sample size 9 9 Std. dev. 7.70 8.24

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