Asimple random sample of size n is drawn from a normally distributed population, and the mean of the sample is (x with a line over it), while the standard deviation is s. what is the 99% confidence interval for the population mean? use the table below to you answer the question.

confidence level. 90%. 95%. 99%
z*-score. 1.645. 1.96. 2.58

Last option

Step-by-step explanation:

If we extract a sample of size n from a normal population and we want to estimate the population mean then the confidence interval for the mean will be:

Where

Where  is an estimator for the mean μ.

n is the sample size and s is its standard deviation.

is the level of significance

= 1-Confidence Level

Then

Then the 99% confidence interval for the population mean is

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.