Do a paired test on a SRS of 40 individuals, to determine if the difference between actual Weight and Ideal Weight is 15 pounds.
(hint1: a paired sample may also be called matched pairs -- see chap.9-4 on inferences from dependent samples)
(hint2: you must take both the weight and ideal-weight from the same data row (together) for each sample)
a. show your sample data, and the mean weight, the mean ideal-weight, and the mean weight difference for the sample
b. state H0 and H1
c. using alpha=0.05, show the calculated t statistic, the critical t value, and the resulting probability with your conclusion
d. provide a confidence interval for the mean difference of the sample at a 95% level.