1. The file Trades.csv includes a column that lists the number of sales calls made per day by traders at a Wall Street firm. The traders have historically completed an average of 2200 calls per day.
   1. Using a significance level of =0.05, perform a two-tailed hypothesis test to determine if the number of calls per day is significantly different than the historical value. Use the test statistic/critical value approach.
   2. What is the lowest value of for which the null hypothesis in this problem would be rejected (assume all other values in the problem stay the same).