Question

Please, I need assistance with this problem.

What is the sample mean for this data set, sample median, sample variance and estimated standard error of the sample mean

79.3
75.1
78.2
74.1
73.9
75
77.6
77.3
73.8
74.9
75.2

For the above data, we know that the true mean µ = 76.1 inches and the standard deviation σ = 1.8 inches. what is the probability that the sample mean exceeds 77 inches? Hint: you are using a sample so the denominator needs to be the estimated standard error, not the sample standard deviation. Even though this data has only 11 points, assume that it is normally distributed for the sake of this problem. answers to two significant digits.

Answer 1