Answer:
number 3
Step-by-step explanation:
The answer is 24
Since 24 divided by 8 is 3
Hope this helps!! :)
Answer: 
Step-by-step explanation:
The confidence interval to estimate the population mean is given by :_

Given : Sample size : n= 60 , the sample is a large sample (n>30), so we can apply z-test.
Sample mean = 
Standard deviation : 
Level of confidence:

Then, critical z-value =
Then, a 95% confidence interval estimate of the population mean will be

Hence, the 95% confidence interval to estimate the population mean =
.