Answer:
I think Leslie Is 20
Step-by-step explanation:
Answer:
85°
Step-by-step explanation:
AED and DEB would add up to 180, the same goes for AEC and CEB
Answer:
the correct answer is shown below
Step-by-step explanation:
hope this helps
Answer: 0.701
Step-by-step explanation:
Formula :
, where
significance level ,
Population standard deviation, n= sample size.
As per given, n= 22

Critical z- value for 90% confidence level : 
Then,

Hence , error bound (EBM) of the confidence interval with a 90% confidence level= ± 0.701