Answer: -1.55
Step-by-step explanation:
Given : Mean : 
Standard deviation : 
Sample size : 
Sample mean : 
The test statistic for the population mean is given by :-


Hence, the value of z statistic = -1.55
Answer:
Step-by-step explanation:
Your answer would be B., because you would multiply
2.14 x 22.4 =
47.939
then you will subtract that by 42.9
47.939 - 42.9 =
5.026
Answer:
that = 8 and if you want to see more you can go on