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An analyst collected data from 25 randomly selected transactions and found the purchase amounts (in 16.49 2553 3253 2021 19,25 :3, $). The mean is $24.81 and the standard deviation is $13.97. The analyst wants to know ifthe mean 3179 33.36 4.48 42.83 3959 5:33;: amount of all transactions is at least $19. Use the given Information to complete parts a 32-27 13-21 11.79 46.89 4.83 25.42 45.93 14.04 3.77 35.12 37.24 5.24 15.59 16.28 40.57 it) What is the null hypothesis? H0: p = 3 19 (Type an integer or a decimal.) b) is the alternative ones or twowsided? The alternative hypothesis is onesided. c) What is the value of the test statistic? The test statistic is D (Round to two decimal places as needed.)