If the 95% confidence interval is (70.19,75.41), what is the interpretation?

A researcher is interested in whether a certain supplement affects cognitive function. The researcher obtains a sample of n equal to 36 participants and gives each participant a certain dosage of the supplement. After a year of taking the supplement, the participants were give a standardized cognitive skills test. The mean score was M equal to 72.8. For the general population, the scores on the test form a normal distribution with mu equal to 70 and sigma equal to 8. Can the researcher conclude that the supplement has a significant effect on cognitive function at the significance level of 5%? If the 95% confidence interval is (70.19, 75.41), what is the interpretation? There is a 95% chance that the true population mean is located within the interval (70.19, 75.41). O There is a 95% probability that the true population mean is located within the interval (70.19, 75.41). We are 95% confident that the true population mean is located within the interval (70.19, 75.41). We are 5% confident that the true population mean is located within the interval (70.19, 75.41)