Question

1. What is the model for this experiment? Define all terms and include assumptions necessary for statistical

analysis.

b)         Complete an ANOVA table including Source, df, SS, and MS.

c)         Test for differences in mean angles between delays. Use a significance level of .05.

The leaves of certain plants in the genus Albizzia will fold and unfold in Exercise 3.5 various light conditions. We have taken fifteen different leaves and subjected them to red light for 3 minutes. The leaves were divided into three groups of five at random. The leaflet angles were then measured 30, 45, and 60 minutes after light exposure in the three groups. Data from W. Hughes.

Delay (minutes)	Angle (degrees)
30	140 138 140 138 142
45	140 120 128 130
60	118 130 128 118 118

Analyze these data to test the null hypothesis that delay after exposure does not affect leaflet angle.

The second value in the 45 minutes group was taken out, so it only has 4 observations compared to 5 in the other groups.. How does this affect the analysis? and How do I calculate everything by hand in this problem? I am not allowed to use my computer to generate the ANOVA table.

Answer 1