Answer:it’s the first one
Step-by-step explanation:
Answer: C. 12.5
Step-by-step explanation:
Given : A manufacturer of new light bulbs claims the average lifetime of its long-life bulb is more than 4000 hours.
Population mean : 
Sample size : n= 100
Sample mean : 
Standard deviation: 
The value of test-statistic is given by :-

Hence, the value of the test statistic for this problem is 12.5.
Answer:
1.125
Step-by-step explanation:
(½ of ¾)×3
⅜×3 = 9/8 or 1 1/8 or 1.125 cups of sugar