Based on interviews with 86 SARS? patients, researchers found that the mean incubation period was 4.7 ?days, with a standard deviation of 14.days. Based on this? information, construct a? 95% confidence interval for the mean incubation period of the SARS virus. Interpret the interval.
The lower bound is __ days (Round to two decimal places as? needed.)
The upper bound is __ days