A sample of 12 radon detectors of a certain type was selected, and each was exposed to 100 pCi/L of radon (1 pCi is one trillionth of a Curie). The resulting readings were as follows: 105.6 90.9 91.2 96.9 96.5 91.3 100.1 105 99.6 107.7 103.3 92.4 Does this data suggest that the population mean reading under these conditions differs from 100? State and test the appropriate hypotheses using alpha = 0.05.Question 5 Calculate the test statistic. O t = 0.9624 O 't- - 0.9624 O t = 0.9213 O t = - 0.9213 O t = 2.13 O t = 1.75Determine the critical value/s. Choose the best answer. O t (alpha = 0.025, df = 11) = + 2.201 O t (alpha = 0.05, df = 11) = - 2.201 O t (alpha = 0.05, df = 12) = + 2.201 O t (alpha = 0.025, df = 11) = 2.201 O t (alpha = 0.05, df = 11) = + 2.201