lab scale known to have a standard deviation of 0.001gram, speimen weghtted 8 times. average weiht is 4.1602 gram. what is 99% confidence interval

Step-by-step explanation:

From the question we are told that:

Sample size

Mean

Standard deviation

Generally 99\% confidence from table  is mathematically given by

Generally the equation for 99\% confidence level (CI)  is mathematically given by

for the first question it would be the second answer for the second question it would be the third answer and for the third question it would be the first answer

step-by-step explanation: