Next question Assume that the sample is a simple random sample obtained from a normally distributed population of flight delays at an airport Use the table below to find the minimum sample size needed to be 95 confident that the sample standard deviation is within 1 of the population standard deviation A histogram of a sample of those arrival delays suggests that the distribution is skewed not normal How does the distribution affect the sample size To be 95 confident that s is 1 5 10 20 30 40 50 within of the value of o the sample size n should be at least To be 99 confident that s is within of the value of o the sample size In should be at least 6 The minimum sample size needed is 19 205 768 192 48 21 128 1 5 10 20 30 40 50 33 218 1 336 336 85 365 38 22 14 Points 0 of 6 Save