Using the data can you help me figure out the following, I'm not understanding the problem.

Tinteral

(85.74,91.76)

X=88.77

Sx=8.897431411

N=36

Data displays results from a simple random sample of times(minutes) between eruptions of the Old Failful Geyser. The confidence level of 95% was used.

"Express the confidence interval in the format that uses the "less than" symbol. Round the confidence interval limits given that the original times are all rounded to one decimal place.

______min