(1 point) An agricultural field trial compares the yield of two varieties of cor

Question

(1 point) An agricultural field trial compares the yield of two varieties of corn. The researchers divide in half each of 15 fields of land in different locations and plant each corn variety in one half of each plot. After harvest, the yields are compared in bushels per acre at each location. The 15 differences (Variety A-Variety B) give x = 3.46 and s 5.87 Does this sample provide evidence that Variety A had a higher yield than Variety B? State the null and alternative hypotheses: (Type "mu" for the symbol , eg. mu > 1 for the mean is greater than 1, mu

Explanation / Answer

The statistical software output for this problem is:

One sample T summary hypothesis test:
: Mean of population
H0 : = 0
HA : > 0

Hypothesis test results:

Hence,

Ho: mu = 0

Ha: mu > 0

Test statistic = 2.2828829

Yes

Mean Sample Mean Std. Err. DF T-Stat P-value 3.46 1.5156275 14 2.2828829 0.0193

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