To compare the effect of weather on sales of soft drinks, a distributor surveyed people in two regions of the country and asked if they purchased soft drinks in the last month. The following are the results. The distributor would like to know if there is a difference in sales between the two regions. 
Using the 1% level of significance, what is the critical value?
Definitions:
Wechsler Adult Intelligence Scale
A standardized test designed to measure adult intelligence through various verbal and performance indicators.
Verbal Scale
A scale used to measure subjective phenomena where responses are given in words rather than numbers or graphical symbols.
Mental Age
An assessment of an individual's mental capability expressed in terms of the average abilities of a certain age group.
Achievement Test
An assessment designed to measure an individual's knowledge or proficiency in a certain area that they have been taught or trained in.
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