is it less than 95?

Michelle is interested to find out whether Singaporeans are drinking sufficient water each day. She collected a simple random sample of 150 Singaporeans and asked each individual how many cups of water they drank each day. We assume that there is 100% response rate. She derived a 95% confidence interval of the mean number of cups to be (6.6, 7.8). The data were passed to another researcher, who chose a different confidence level x%, and came up with a confidence interval (6.9, 7.5). What can you say about x? (1 mark) O Less than 95 O More than 95 O Equal to 95