Answer: (11.95, 14.11)
Explanation:
Let x be a random variable that represent the number of years of education.
Given: Sample size : n= 26
Sample mean : 
Sample standard deviation : s = 3.22
Significance level : 
Degree of freedom: df = n-1 = 25
Critical t-value for
and df = 25 will be

90% confidence interval for mean:

A 90% confidence interval for the mean number of years of education = (11.95, 14.11)
Technical skills are the abilities and knowledge needed to perform specific tasks and are often relatef to mechanical, information technology, mathematical, or scientific tasks. The statement that secondary technology skills are skills that may be improved as the online class progresses is true.
A. Unskilled will be best answer
It's false. The mid-nineteenth century is the mid 1800's.