Using the Information, I have generated in Minitab. Please can you assist with answering E and F?

e) Use Minitab to perform the appropriate t-test on your data. (You

should assume that the assumption of a common population variance is

reasonable, regardless of the outcome of your investigation in part (c).)

Include a copy of the relevant Minitab output in your answer.

What is the result of the t-test? Carefully report your conclusions

concerning the question of whether light affects root growth of mustard

seedlings. [6]

(f) A reservation about your conclusions in part (e), given the way in which

the experiment was designed and carried out, might be that cutting the

stems could have different effects in the light and in the dark. Give two

other valid reservations

WORKSHEET 2 Two-Sample T-Test and Cl: Dark, Light Method My: mean of Dark Hz: mean of Light Difference: U1 - Hz Equal variances are not assumed for this analysis. Descriptive Statistics Sample N Mean StDev SE Mean Dark 15 29.33 6.39 1.6 Light 15 26.33 6.59 1.7 Estimation for Difference 95% CI for Difference Difference 3.00 (-1.86, 7.86) Test Null hypothesis : Ho: PM - Hz = 0 Alternative hypothesis : H1: 1 - Uz # 0 T-Value DF P-Value 1.27 27; 0.216