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In a study, steel rods supplied by two different companies were compared. Ten sample springs were made out of the steel rods supplied by each

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In a study, steel rods supplied by two different companies were compared. Ten sample springs were made out of the steel rods supplied by each company, and the "bounciness" was studied. The data provided; company A: n=10, mean= 7.95, s=1.1; company B: n=10, mean=9.26, s=0.57. Which below statement is not true?

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O At 95% Cl, company A demonstrates higher variation than company B. O At 95% Cl, there is a significant difference in steel rods. O At 90% Cl, there is a significant difference in steel rods. O At 99% Cl, company A demonstrates higher variation than company B

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