Question

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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