Consider the accompanying data on plant growth after the application of different types of growth hormone. 1: 14 16 6 15
2: 20 13 21 18
3: 19 15 21 17
4: 6 10 19 10
5: 5 12 15 7
a. Perform an F test at level alpha = .05.
b. What happens when Tukey's procedure is applied?

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18