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Ecologists are interested in whether the presence of arbuscular mycorrhizal gi (AMF) in the soil affects the mass of seeds from plants growing in the soil. They grow up nts in 12 pots: six with AMF added to the soil and six without AMF. They report the seed mass and summary statistics shown below: Seed biomass (g) Difference ith AMF No AMF in columns 150.6 153.2 -2.6 147.9 145.8 2.1 153.4 163.3 -9.9 140.3 146.5 -6.2 146.8 149.8 -3.0 147.5 159.8 -12.3 1 = 147.8 2 = 153.1 = 19.31 s = 51.33 82 = 7.16 d = -5.3 s = 27.66 s = 35.32 Sd = 5.26 %3D %3D %3D $1 = 4.39 %3D t the null hypothesis that AMF does not affect seed mass. You can assume that the data in h sample follow a normal distribution. Report the P-value and a circle the correct conclusion.

Ecologists are interested in whether the presence of arbuscular mycorrhizal gi (AMF) in the soil affects the mass of seeds from plants growing in the soil. They grow up nts in 12 pots: six with AMF added to the soil and six without AMF. They report the seed mass and summary statistics shown below: Seed biomass (g) Difference ith AMF No AMF in columns 150.6 153.2 -2.6 147.9 145.8 2.1 153.4 163.3 -9.9 140.3 146.5 -6.2 146.8 149.8 -3.0 147.5 159.8 -12.3 1 = 147.8 2 = 153.1 = 19.31 s = 51.33 82 = 7.16 d = -5.3 s = 27.66 s = 35.32 Sd = 5.26 %3D %3D %3D $1 = 4.39 %3D t the null hypothesis that AMF does not affect seed mass. You can assume that the data in h sample follow a normal distribution. Report the P-value and a circle the correct conclusion.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Ecologists are interested in whether the presence of arbuscular mycorrhizal fungi (AMF) in the soil affects the mass of seeds from plants growing in the soil. They grow up plants in 12 pots: six with AMF added to the soil and six without AMF. They report the seed biomass and summary statistics shown below: Seed biomass (g) Difference With AMF No AMF in columns 150.6 153.2 -2.6 147.9 145.8 2.1 153.4 163.3 -9.9 140.3 146.5 -6.2 146.8 149.8 -3.0 147.5 159.8 -12.3 H1 = 147.8 si = 19.31 S1 = 4.39 d = -5.3 s = 27.66 s: Sd = 5.26 Y2 = 153.1 s = 51.33 = 35.32 82 = 7.16 Test the null hypothesis that AMF does not affect seed mass. You can assume that the data in each sample follow a normal distribution. Report the P-value and a circle the correct conclusion. (a) This study design is (CIRCLE ONE): PAIRED UNPAIRED (b) What can you say about the P-value? (c) CIRCLE the appropriate conclusion. • Data are consistent with null hypothesis. • We should reject the null hypothesis; AMF increases the seed biomass. • We should reject the null hypothesis, AMF decreases the seed biomass. • We should reject the null, but we cannot say whether AMF decreases or increases the seed biomass.
Transcribed Image Text:Ecologists are interested in whether the presence of arbuscular mycorrhizal fungi (AMF) in the soil affects the mass of seeds from plants growing in the soil. They grow up plants in 12 pots: six with AMF added to the soil and six without AMF. They report the seed biomass and summary statistics shown below: Seed biomass (g) Difference With AMF No AMF in columns 150.6 153.2 -2.6 147.9 145.8 2.1 153.4 163.3 -9.9 140.3 146.5 -6.2 146.8 149.8 -3.0 147.5 159.8 -12.3 H1 = 147.8 si = 19.31 S1 = 4.39 d = -5.3 s = 27.66 s: Sd = 5.26 Y2 = 153.1 s = 51.33 = 35.32 82 = 7.16 Test the null hypothesis that AMF does not affect seed mass. You can assume that the data in each sample follow a normal distribution. Report the P-value and a circle the correct conclusion. (a) This study design is (CIRCLE ONE): PAIRED UNPAIRED (b) What can you say about the P-value? (c) CIRCLE the appropriate conclusion. • Data are consistent with null hypothesis. • We should reject the null hypothesis; AMF increases the seed biomass. • We should reject the null hypothesis, AMF decreases the seed biomass. • We should reject the null, but we cannot say whether AMF decreases or increases the seed biomass.
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