Show all working as to how the answer was derived. 1. Currently, bank employees in the United States On less than 2,000ドル/month. How would you set up a hypothesis test to corroborate this statement based on a given sample and confidence level? A. Ho: <2000 B. Ho: ≤2000 c. H1: <2000 D. H1: ≤2000 Assuming that the number of customer complaints follows a normal distribution, test the hypothesis that the average number of complaints is higher in the Mexican franchise (remember to first conduct a test for the equality of variances to find the statistic to use in the test of means). Use a significance level of 5% for your calculations. A. This is a left-tailed test where the test statistic t = -1.4558 allows us to reject Ho. B. This is a right-tailed test where the test statistic t = -1.4201 allows us to reject H. C. This is a left-tailed test where the test statistic t = -1.4558 does not allow us to reject Ho- D. This is a left-tailed test where the test statistic t = -1.4201 does not allow...

X 7. Given A(x) = f ( 3-t2) dt, find A'(x) 0

4 2. 3x2 dx, F(x) = x3 +2 1

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