eople are randomly selected and the accuracy of their wristwatches is checked, with positive errors representing watches that are ahead of the correct time and negative rs representing watches that are behind the correct time. The 50 values have a mean of 102sec and a population standard deviation of 220sec. Use a 0.01 significance to test the claim that the population of all watches has a mean of Osec (use a two-sided alternative). test statistic is P-Value is

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