An accounting firm did a study to determine the time needed to complete one person's tax forms. It randomly surveyed 100 people, and a sample standard deviation was 7.0 hours. Based on this sample, a 90% confidence interval for the true average time needed to complete one person's tax forms was calculated to be (22.228, 24.972). Assume all assumptions for statistical inferences are satisfied. Which of the following statements is true about this confidence interval? The standard error of the confidence interval is 0.07. O The confidence interval would be wider if 1000 people were surveyed instead of 100. The margin of error is smaller than 1.64. O The point estimate used to construct this confidence interval is 23.8