A manufacturer is comparing five different suppliers. She has product samples fr

Question

A manufacturer is comparing five different suppliers. She has product samples from each, and will do a life-time testing procedure – essentially operate the products under severe conditions and see how long they last. To see if the mean durability of the products are the same among the suppliers or not, an efficient statistical procedure we can employ is

chi-square test for the multinomial distribution

analysis of variance

multiple t-tests using samples from pairs of suppliers

test of proportions

chi-square test for the multinomial distribution

analysis of variance

multiple t-tests using samples from pairs of suppliers

test of proportions

Explanation / Answer

Solution:- b) Analysis of variance

Analysis of Variance (ANOVA) is a statistical method used to test differences between two or more means.

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