Answer:
click the button and use it as and use it
Answer:
he would walk 1 mile in 2 hours
Step-by-step explanation:
which is very slow tbh
Answer:
the answer is im back and i dont know
Step-by-step explanation:
hi wanna talk i was rlly sick
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.