Question 7 1 pts To assess the accuracy of a laboratory scale, a standard weight that is known to weigh 1 gram is repeatedly weighed a total of n times and the mean of the weighings is computed. Suppose the scale readings are normally distributed with unknown mean p. and standard deviation 0 = 0.01 g. How large should n be so that a 95% condence interval for ,u has a margin of error of i 0.0008? 601