Assume you have a t-test for the difference between two means: Ho 1-2 = 0 \HA: 1 - 2 # 0 From a survey, you know that 1 =108, 2 =87, and SE(1-2) =3.3. After calculating the degree of freedom, you use software to find the corresponding critical value for a 95% confidence interval to be 2.3. Construct the 95% confidence interval for the mean and report the upper limit. Note: 1- Only round your final answer to the nearest integer. Question 16 (1 point) if Lego is liked by children as well as adults. Management at a lego company wonders lego sets purchased for adults are on average more expensive than than lego purchased for children (because lego sets liked by adults are often more expensive). So management collects a random sample of 15 lego sets purchased for children and 37 sets purchased for adults (buyers are interviewed). They find that on average, $60. was spent on lego sets purchased for children, with a standard deviation of $19.54. Whereas, lego sets purchased for adults were on average $85 with a standard deviation of $23.06. So management wants to investigate if HA a-c> 0, where a represents adults and c represents children. What is the standard error for the difference between sample means for money spent on lego between the adults group and the children group SE(ya - Yc)? Note: 1- Round your intermediate numbers to 4 decimal places. 2- Round you final answer to 3 decimal places. Enter your final answer to 3 decimal places.