Answer: $12.5
Step-by-step explanation:
The $100 Is 100 percent meaning that one percent is $1. Take that and multiply it by 12.5 and get $12.5
Answer:
The 99% confidence interval is 
Step-by-step explanation:
From the question we are told that
The sample size is 
The sample mean is 
The standard deviation is 
Given that confidence is 99% then the level of significance is mathematically represented as


Next we obtain the critical values of
from the normal distribution table
The value is
Generally the margin for error is mathematically represented as

=> 
=> 
The 99% confidence interval is mathematically represented as

=> 
=> 
Answer: 11+5=16
Step-by-step explanation: 14, 15, 16, 17 and 18
Answer:
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