Answer:
Option (D) None of the above.
Explanation:
We are given the following data:
54, 65, 76, 43, 45, 76, 87, 12, 23, 34, 67,65, 78, 45, 34
Formula:
where
are data points,
is the mean and n is the number of observations.
Sum of squares of differences = 0.16 + 129.96 + 501.76 + 112.36 + 73.96 + 501.76 + 1115.56 + 1730.56 + 936.36 + 384.16 + 179.56 + 129.96 + 595.36 + 73.96 + 384.16 = 6849.6
Confidence interval:
Putting the values, we get,
