Answer:
b = 5
Step-by-step explanation:
89b = 411 + 34 (445)
89b = 445
b = 5
GAZER GAZER INNA BUILDING MANN
Answer: (1.55, 6.45)
Step-by-step explanation:
The confidence interval for population mean is given by :-

Given : Significance level : 
Critical value : 
Sample size : n=41
Sample mean : 
Standard deviation : 
Then, 99% confidence interval for population mean will be :_
