Question: Movie fans use the annual Leonard Martin Movie Guide for

Movie fans use the annual Leonard Martin Movie Guide for facts, cast members, and reviews of over 21,000 films. The movies are rated from 4 stars (4*), indicating a very good movie, to 1 star (1*), which Leonard Martin refers to as a BOMB. The following table gives the running times, in minutes, of a random sample of films listed in one year’s guide.
At the 1% significance level, do the data provide sufficient evidence to conclude that a difference exists in mean running times among films in the four rating groups? T1 = 483, T2 = 573, T3 = 576, T4 = 691, and _x2i = 232,117.
Apply Procedure to perform a one-way ANOVA test by using either the critical-value approach or the P-value approach.



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  • CreatedAugust 13, 2015
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