The Natural Cereal Company claims that the average weight of is cereal boxes is at least 15oz. If a random sample of 24 boxes produced a sample mean x = 13.8 and a sample standard deviation s = 4.8, use the sample mean and standard deviation to test che claim at the 95% (a = 0.05) significance level. %3D Jse the hypothesis Ho: H = 15 and H1: µ < 15 with a one-tail test. 18 Find the critical value for this confidence level. (A) - 1.714 (C) +1.714 (B) - 2.069 (D) + 2.069 19 Find the T score for the test statistic X = 13.8 (A) 1.837 (C) - 1.224 (B) - 1.530 (D) 1.460 20 Based on the above T score - should you REJECT the null hypothesis Ho? (A) YES (B) NO

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