Need detailed solution. Please perform each step with detail. Please do it on MS Word. Thank you.

3-49. Consider the following set oi sample data: 78 121 88 110 107 62 122 130 9S 78 139 89 13 a. Compute the mean and standard devtat'm for these sample data b. Calculate the oi vanauon theg sample and in,teqret its tncarung, c. Ustng Tchebysheffs theorem. deternune the range of valurs should Itulude at least of the data Count thc number of data valtxs that fall into this range and comment 00 whether you interval r:mge was conservative ooe