From the normal distribution or the empirical rules, we know 95.45% of the population are between 12 standard deviations away from the mean. Given the standardized normal distribution, z has the mean of O and the standard deviation of 1. A test has a mean of 80 and a standard deviation of 10. A sample of 4 test scores is randomly selected, the sample mean axis 79 and the sample standard deviation s is 10.5. Which one of the following states about the empirical rules is incorrect? O The standard error is 10 / V4. O The standard error is 10. The standard error equates to 10.5 / V4. O The expected value of the sample mean equates the sample mean of 79 O The standard error is 10.5