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Alice and Brown were assigned to work on a project. The table below shows the amount of time (in minutes) each has spent on the project. Alice 30 37 36 36 39 29 31 38 3740424441 35 28 Brown 28 32 29 33 38 30 37 36 31 30 29 26 27 26 31 (a) The standard deviation of the time that Alice has spent is minutes. (Round to two decimal places.) (2 marks) (1)) The value of the F statistic that tests whether the variances of their times spent are equal is . (Round to two decimal places.) (2 marks) (c) To test the hypotheses of the two population variances: Ho: 02 (Alice) = 0'2 (Brown) HA: 02 (Alice) y': 0'2 (Brown) the critical values of the F statistics for the rejection region are and if a = 10%. (Round to two decimal places.)