Question

Two groups of 10 soybean plants are measured for height in meters. Group A receives an experimental fertilizer while Group B receives the normal fertilizer treatment.
Group A: 1.4, 1.3, 1.5, 1.5, 1.7, 1.3, 1.4, 1.3, 1.5, 1.4
Group B: 1.2, 1.3, 1.0, 1.2, 1.3, 1.4, 1.4, 1.2, 1.3, 1.3
Find the mean of Group A and B and the mean difference.

Group A mean: _____
Group B mean: ______
Difference of means: ______
The groups are re-randomized and the mean differences are represented in the dot plot. Is the mean difference between the experimental and normal fertilizer significant?

Answer 1

Is there a chart/graph with this?

Answer 2

here is the chart

Answer 3

Oh okay hold on

Answer 4

Group A mean = (1.4 + 1.3 + 1.5 + 1.5 + 1.7 + 1.3 + 1.4 + 1.3 + 1.5 + 1.4) / 10 = 1.43

Group B mean = (1.2 + 1.3 + 1.0 + 1.2 + 1.3 + 1.4 + 1.4 + 1.2 + 1.3 + 1.3) / 10 = 1.26

Difference of means = 1.43 - 1.26 = 0.17

Answer 5

Thanks