Counting calories ~ A news report states that the 95% confidence interval for the mean number of daily calories consumed

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Counting calories ~ A news report states that
the 95% confidence interval for the mean number of daily calories
consumed by participants in a medical study is (1950, 2120). Assume
the population distribution for daily calories consumed is normally
distributed and that the confidence interval was based on a simple
random sample of 18 observations. Calculate the sample mean, the
margin of error, and the sample standard deviation based on the
stated confidence interval and the given sample size.
IMPORTANT: Use a t∗ value rounded to
THREE decimal places in any calculations. Round
non-integer results to 4 decimal places.
1. What is the sample mean?
x¯=
2. What is the margin of error?
ME=
3. What is the sample standard deviation?
s=