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A production line produces three layer masks with a mean weight of 10 grams and a standard deviation of 0.50 grams. A new process supposedlyr will produce the same type of masks with the same mean and a smaller standard deviation. A sample of 41 masks produced by the new method has a sample standard deviation of 0.30 grams. At a signicance level of 5%, what can we conclude? O The variance has declined because the observed variance is less than 0224 (Critical value) 0 The variance has declined because the observed variance is less than 0211 (Critical value]I O The variance has declined because the observed variance is less than 10% (Critical value]. 0 The variance has not declined because the observed variance is not less than 0.211 (Clitical value} 0 The variance has declined because the observed variance is less than 0.166 (Critical value) 0 The variance has declined because the observed variance is less than 0.41? (Critical value}