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e MC A populations of 5,000 items has a mean of 43. A simple random sample of 100 was drawn from the population and the mean of sample is 45. What is the sampling error? Answer. 2 Sampling error is sample average - population average (p. 240) The correct answer is: 2 Statement 1: When using simple random sampling. the sampling error will be zero. Statement 2: If the size of a sample equals the size of the population, we would not expect any error in estimating the population parameter. Select one: a. Only Statement 1 is True. 4 b. Only Statement 2 is True. C. Both Statements are True. x d. Both Statements are False. Your answer is incorrect The correct answer is: Only Statement 2 is True. The wildlife department has been feeding a special food to rainbow trout fingerlings in a pond. Based on a large number of observations, the distribution of trout weights is normally distributed with a mean of 402.7 grams and a standard deviation of 8 8 grams. What is the probability that the mean weight for a sample of 40 trout exceeds 405.5 grams? Show your answer to four decimal places (for example, 0.2567). Answer. 1 0.0222