A study by the department of education of a certain state was trying to determine the mean SAT scores of the graduating high school seniors.  The study found that the mean SAT score was 460 with a margin of error of 24.  Which of the following is a reasonable value for the true mean SAT score of the graduating high school seniors?

A study by the department of education of a certain state was trying to determine the mean SAT scores of the graduating high school seniors. The study examined the scores of a random sample of 130 graduating seniors and found the mean score to be 458 with a standard deviation of 105. At the 95% confidence level, use the normal distribution/empirical rule to estimate the margin of error for the mean, rounding to the nearest tenth.

The SAT-Verbal scores of a sample of 300 students at a particular university had a mean of 592 and standard deviation of 73.According to the university's reports, the SAT-Verbal scores of all its students had a mean of 580 and a standard deviation of 110.Which of the following is a statistic?300592580110

The arithmetic mean of the scores of a group of students in a test was 52. The brightest 20% of them secured a mean score of 80 and the dullest 25% a mean score of 31. The mean score of remaining 55% is: (approx.)?

The scores of a random sample of 100 high school students on a standardized mathematics test in school A gave a mean of 78 and a standard deviation of 20. What is the best point estimate of the true average score in this standardized mathematics test?

The mean of the marks scored by 50 students was found to be 39. Later it was found that a score of 43 was written as 23. Find the correct mean.