I’m not sure if this is correct but
you have used 3/8 of the plants so you will have 5/8 left to use
Answer:
A
Step-by-step explanation:
You were right, its the second choice CA=CB+BA
Answer: side ways
Step-by-step explanation:
Answer: z= -1.636
Step-by-step explanation:
When population standard deviation is known, then the test statistic is given by :-

, where
= sample mean,
= population mean, n=sample size ,
= standard deviation
As per given,

Hence, the e test statistic to see whether the candy bars are smaller than they are supposed to be : z= -1.636