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Author Question: 307 diamonds were sampled and randomly sorted into three groups of diamonds. These diamonds were ... (Read 623 times)

theo

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on: Feb 14, 2020
307 diamonds were sampled and randomly sorted into three groups of diamonds. These diamonds were randomly assigned to one of the three organizations, or groups (HRD, GIA, or IGI), that certify the appraisal of diamonds. A study was conducted to determine if the average size of diamonds reported by these three certification groups differ. A completely randomized design was used and the resulting ANOVA table is shown below.

One-Way AOV for CARAT by CERT
Source DF SS MS F P            
CERT 2 8.3265 4.16326 83.21 0.0000
Error 305 15.2604 0.05003
Total 307 23.5869

Give a practical conclusion for the test in the words of the problem. Use α = 0.10 to make your conclusion.
◦ There is sufficient evidence to indicate that the mean carat weight for the GIA group is lower than the other two groups.
◦ There is insufficient evidence to indicate that differences exist among the mean carat weights for the three certification groups.
◦ There is sufficient evidence to indicate that the mean carat weight for the HRD group equals the mean carat weight for the IGI group.
◦ There is sufficient evidence to indicate that differences exist among the mean carat weights for the three certification groups.
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by theo on Feb 14, 2020

Benayers

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Reply #1 on: Feb 14, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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bunnie333

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Reply #2 on: Oct 16, 2021
thank you


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