please help me answer the attached. Also what is the value of X? And what is the significance level for the confidence interval? Well either the formula level or technology can be used to determine the 95% confidence level rounding to one decimal?

Assume that population mean is to be estimated from the sample described. Use the sample results to approximate the margin of error and 95% confidence interval. V n =49, x =52.5 seconds, s = 5.2 seconds .. . The margin of error is seconds. (Round to one decimal place as needed.)