I believe the answer is d :) the law stopped immigration from the us to texas so that answer makes sense
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)
<span>the answer is farms with distant markets for selling their harvest.
Because of this, it is impossible to distribute agricultural product to a far away area because the product will get rotten in the middle of the distribution.
The development of railroads answered this very problem which allow the agricultural sector to flourish.</span>