Question

M. Melvae at the LA Transportation Association wants to test the satisfaction of riders on LA Metro’s rail lines. Riders were sampled on three different rail lines: Expo, Blue, and Gold. The research team also wanted to see if day of week (weekday vs. weekend) affected satisfaction.

	Expo	Blue	Gold
Weekday	72	62	71
	77	56	77
	78 73 Mean = 75.0	66 60 Mean = 60.5	79 76 Mean = 75.75
Weekend	85	65	85
	90	60	89
	82 85 Mean = 85.5	59 60 Mean = 61.0	83 88 Mean = 86.25

i. State the null and alternative hypotheses that address this research question.

ii. The Sum of Squares for each component have been calculated for you. Fill in the rest of the table below.

Source	SS	df	MS	Fobs	Fcrit
Factor A (Metro Line)	2056
Factor B (Day)	294
AxB	147
Error	190
Total	2688

iii. Based on your results, make a decision about each hypothesis.

iv. Perform the Tukey Test, if necessary. Indicate which cell means differ.

v. Write a brief conclusion of your findings (This conclusion should be phrased professionally)

Answer 1