Question

Standardized test scores for all 425 students at a high school are shown below. Hide and shuffle all of the values. Take a random sample of 28 values from the population. Based on that sample, find the mean and sample standard deviation using a statistics calculator. Using those values, create a 95% confidence interval for the true mean of the population, rounding to the nearest tenth.
Sum of Samples: 1675 Number of Samples: 28