Z-test should be used when the parent standard deviation is known and the sample size is greater than or equal to 30 (to satisfy the Central Limit Theorem). A T-test should be used when these two rules do not apply.
Answer:
Answer is C
Step-by-step explanation:
Answer:
m= -3
Step-by-step explanation:
You should do m = -1 - 2 x 1 - 0 which equals m = -3
Answer:
It would be $0.97
Step-by-step explanation:
You round the nearest cent so you round the second number from the dot