Suppose we gather the following sample:

X18 22 15 48 10 39 47 26 30 28

Using this sample, calculate the upper bound for the 95% confidence interval.

Hint: you'll need to find the critical value for tusing a t-table(Links to an external site.)

https://www.sjsu.edu/faculty/gerstman/StatPrimer/t-table.pdf

Round your answer to four decimal places.