We want to compare the average weekly expenditure for consumption food after families from two regions with substantially the same sociological characteristics. A random sample drawn from families of each medium leads to the results below. Region A Region B Number of families 40 42 Average 91.7 97 AT Variance 125 150 Further, you are told that the standard deviation of the sampling distribution is equal to 2.5877 Before knowing the results of this investigation, the person in charge of the market of a large grocery chain had hypothesized that the average weekly food expenditures do not differ significantly significant between the families of these two regions. A significance level a is used. = 0.10 for this hypothesis test? The value of the gap-reduced is - 2.05? What is the descriptive threshold value and decision for this test?