I need the answers to number 8 and to have number 6 checked.

Confidence Intervals (16 points/8 each] 6. At another experimental forest (Forest #2) with another variety of pine tree, foresters did not have the time nor money to measure all of the trees, so they randomly measured 35 trees. They calculated a mean height of x=92.2 with a sample SD of s = 11.6. a) Determine a 90% Cl for the mean tree height and assume a population SD (o) of 14.6 feet (the same as Forest #1). 88.1404, 95, 4257 16 45 x 14. 4 -4.0596 92 . 2 - 4.0596) +12 (52. 20 4 bj Determine a 95% CI for the mean tree height without assuming you have a population SD available (use sample SD, $]. xtlalz n ( 8 8. 2157 , 96. 1843) 2. 032 x 11.6 / 75 5 3. 9 843 ( 92. 2 - 34843 ) +14