he weekly mean sales (in thousands of dollars) of the three local hardware store

Question

he weekly mean sales (in thousands of dollars) of the three local hardware stores are as shown. Store A: 8.8, 8.3, 9.6, 9.9 Store B: 7.0, 7.9, 5.4, 5.5 Store C: 5.0, 6.2, 4.6, 7.0 Instead of comparing the population weekly mean sales of the three local hardware stores based only on location, suppose we want to compare the mean weekly sales based on location and season of the year (winter, spring, summer, and fall). What is(are) the alternative hypothesis(es) for performing a two-way ANOVA using this information? i. Location has an effect on the weekly mean sales. ii. The season has an effect on the weekly mean sales. iii. There is an interaction effect between location and season on the mean sales.

i, ii, and iii

i and ii only

iii only

Explanation / Answer

as here we are applying 2 way ANOVA ; therefore it weill check the main effect of both location; season and interaction on mean weekly sales,

hence correct option is : i, ii, and iii

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