Question 10 The liquid volume packaged in a bottle of A-brand orange juice follows a normal distribution, with a mean=u ml and standard deviation of 5 ml. We take a sample of bottles and Not yet measure their volumes. How many bottles do we have to sample so that we are 90% confident that the measured mean is within + 0.5 ml of the true mean? answered Round the result to the nearest integer. Marked out of Note that from the z-distribution table, we know: 3.00 P(Z