5 The method involved in making decisions about population parameter is: Point estimate descriptive statistic Inferential statistic Numbers of people entering a commercial building by each of four entrances are observed. The resulting sample of 19 entrances is as follows: Entrance 1 2 3 4 No. of People 49 36 24 41 At 5% We wish to test if all four entrances are used equally, a. Calculate the test statistic (round to 2 decimal) b. Find the critical value c. What is your conclusion? Answer: Since the test statistic is (greater/less) evidence/ don't have enough evidence) than the critical value, we (have enough to conclude that all four entrances are used equally