A british study of this question compared 98 drivers and 83conductors of london double decker buses. The article reporitng thestudy gives the data.
Drivers Conductors
Total Calories 2821 +_ 44 2844 +_ 48
Alcohol (grams) . 24 +_ . 06 . 39 +_ . 11
B) Is there significant evidence at the 5% level that conductorsconsume more calories per day than do drivers? Use the two sample tmethod to find p-value, then significance.
C) How significant is the observed difference in mean alcoholconsumption?
D) Give a 95% confidence interval for the mean daily alcoholconsumption of london double decker bus conductors.
E) Give a 99% confidence interval for the difference in mean dailyalcohol consumption between drivers and conductors.