Step-by-step explanation:
$ 900 is the answer. as i shown in the attachment
Answer:
B
Step-by-step explanation:
2x5=10
4x5=20
8x5=30
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 :_

29 times 15 in other words the answer is
435
p.s: im in 7th grade so you an trust me