Answer: (0.994, 0.998)
Step-by-step explanation:
Given : Sample size : n= 25 < 30 , so we use t-test.

Critical t-value use for 98% confidence :

Formula to find the confidence interval :-

i.e. 

Hence, the required confidence interval : (0.994, 0.998)
Answer:
white 47.7%, mulatto (mixed white and black) 43.1%, black 7.6%, Asian 1.1%,
Step-by-step explanation:
white 47.7%,
mulatto (mixed white and black)
43.1%, black 7.6%,
Asian 1.1%,
Answer:
The third option.
Step-by-step explanation:

Hence the 3rd option.
Answer:
A
Step-by-step explanation: