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Here is the dataset containing plant growth measurements ofplants grown in solutions of commonly-found chemicals in roadwayrunoff. Researchers wish to determine roadway runoff with differentcompositions has a different effect on plant growth.

Phragmites australis, a fast-growing non-native grass common toroadsides and disturbed wetlands of Tidewater Virginia, was grownin a greenhouse and watered with one of the followingtreatments:

• Distilled water (control);
• A weak petroleum solution (representing standard roadwayrunoff);
• Sodium chloride solution;
• Magnesium chloride solution;
• De-icing brine (50% sodium chloride and 50% magnesiumchloride).

Twenty grass preparations were used for each solution, and totalgrowth (in cm) was recorded after watering every other day for 40days.

1.) Perform the correct statistical test to determine thep-value.

• Report your answer in scientific notation
  • e.g. 1.00E-04

Distilled H2O	Petro	NaCl	MgCl	NaCl + MgCl
19.93	19.85	19.87	19.91	19.73
19.91	20.06	19.88	19.92	19.77
20.08	19.99	20.04	19.84	19.75
19.99	19.88	20.05	19.98	19.93
19.9	19.98	20.06	19.82	19.94
19.98	20.08	19.83	19.92	19.79
19.92	20.1	19.9	20.09	19.84
20.01	19.82	19.83	20.1	19.94
19.96	20.01	19.85	20.04	19.89
20.13	20.1	19.87	20.04	19.72
20.15	19.84	19.85	19.87	19.88
20.04	20.03	19.93	19.89	20
19.98	20.01	19.82	19.77	19.74
20.03	19.96	19.85	19.97	19.95
20.13	19.91	20.06	19.84	19.79
20	20.03	20.04	20.07	19.85
20.07	19.92	20	19.83	19.74
19.98	19.94	19.9	19.9	19.78
20.02	20.01	19.94	19.95	19.88
19.94	19.8	20.05	19.78	19.83

2.) Based on the p-value from your Phragmitesdataset analysis, select the options that areTRUE.

		The p-value is greater than ?(0.05).
		The calculated F value was less than the critical F value.
		A post-hoc test is necessary to determinestatistically-significant difference(s).
		The p-value is less than ?(0.05).
		The calculated F value was greater than the critical Fvalue.

3.) Which is / are (an) appropriate evaluation(s) of the resultsof your Phragmites data analysis?

		I would fail to reject the null hypothesis.
		There is a significant difference in growth between the fivegroups of Phragmites plants.
		The control plants' growth rate was greater than thecontaminated plants.
		I would reject the null hypothesis.
		There is no significant difference in growth between the fivegroups of Phragmites plants.