Question

In: Statistics and Probability

What is the would be the null and alternative hypothesis for the following seed germination findings....

What is the would be the null and alternative hypothesis for the following seed germination findings. The research question is based on ffects of salinity on seed germination is an understanding of the optimal environment for crop growth.

Salt concentration 0.00% and Salt concentration 0.75%

	salt concentration 0.00%	salt concentration 0.75
Mean	78.00	74.00
Standard Deviation	14.83	18.17

P value = 0.7128

Based on the significance value (P value) I can accept the Null Hypothesis.

Salt concentration 0.00% and Salt concentration 1.50%

	salt concentration 0.00%	salt concentration 1.50%
Mean	78.00	40.00
Standard Deviation	14.83	25.50

P value = 0.0205

Based on the significance value (P value) I can reject the Null Hypothesis and accept the alternative hypothesis.

Salt concentration 0.00% and Salt concentration 2.00%

	salt concentration 0.00%	salt concentration 2.00%
Mean	78.00	40.00
Standard Deviation	14.83	25.50

P value = 0.0001

Based on the significance value (P value) I can reject the Null Hypothesis and accept the alternative hypothesis.

Expert Solution

Solution-A:

null hypothesis:

mean salt concentrations of 0% and 0.75% are equal

Alternative hypothesis:

mean salt concentrations of 0% and 0.75% are different

p=0.7128

Based on the significance value (P value) I can accept the Null Hypothesis.

that is mean salt concentrations of 0% and 0.75% are equal

Solution-b:

null hypothesis:

mean salt concentration 0.00% and Salt concentration 1.50% are equal

Alternative hypothesis:

mean salt concentration 0.00% and Salt concentration 1.50% are different

p=0.0205

p<0.05

Reject Ho

Accept Ha

mean salt concentration 0.00% and Salt concentration 1.50% are different

Solution-c:

Ho:mean Salt concentration 0.00% and Salt concentration 2.00% are equal

Ha:mean Salt concentration 0.00% and Salt concentration 2.00% are different

p=0.0001

p<0.05

Reject Ho Accept Ha

mean Salt concentration 0.00% and Salt concentration 2.00% are different

Conclusion:

There is sufficient statistical evidence at 5% level of significance to conclude that salt salinity affects seed germination

orchestra answered 1 year ago

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