Question 5 The following data below describe temperatures for wheat grown at Harper Adams Agricultural College between 1982 and 1993. The temperatures measured in June were obtained as follows: 15.2 14.2 14.0 12.2 14.4 12.5 14.3 14.2 13.5 11.8 15.2 Assume that the stande deviation is known to be 0 = 0.5. (a) Construct a 99% two-sided condence interval on the mean temperature. (b) Construct a 95% lower-condence bound on the mean temperature. (0) Suppose that you wanted to be 95% condent that the error in estimating the mean temperature is less than 2 degrees Celsius. What sample size should be used? (d) Suppose that you wanted the total width of the two-sided condent interval on mean temperature to be 1.5 degrees Celsius at 95% condence. What sample size should be used