Mathematics
Mathematics, 17.12.2021 17:40, pinkapple2396

Several methods of estimating the number of seeds in soil samples have been developed by ecologists. An article gave the accompanying data on the number of seeds detected by the direct method and by the stratified method for 27 soil specimens. SpecimenDirectStratified
1219
23337
309
46057
52053
66161
74029
899
9139
1093100
1110
126957
137769
142153
SpecimenDirectStratified
153329
1600
173737
181713
199393
20113
214049
222121
2300
24913
251340
261713
274077
Do the data provide sufficient evidence to conclude that the mean number of seeds detected differs for the two methods? Test the relevant hypotheses using

α = 0.05.

(Use a statistical computer package to calculate the P-value. Use μdirect − μstratified. Round your test statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.)

t=df=P-value=

State your conclusion.

Reject H0. We have convincing evidence that the mean number of seeds detected differs for the two methods. Reject H0. We do not have convincing evidence that the mean number of seeds detected differs for the two methods. Fail to reject H0. We have convincing evidence that the mean number of seeds detected differs for the two methods. Fail to reject H0. We do not have convincing evidence that the mean number of seeds detected differs for the two methods.

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Answers: 3

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