QUESTION 4 6 points e Answer A research wants to conduct a study in two plots in

Question

QUESTION 4 6 points e Answer A research wants to conduct a study in two plots in a deciduous forest. The goal of the study is to look at carbon cycling under different levels of precipitation. Before the study can begin, she must make sure that pH is the same in both plots. Help our ecology heroine determine if the pH in Plot A is the same, or different than the pH in Plot B Ho: The soil pH in Plot A is the same as the soil pH in Plot B HA: The pH in Plot A is different than the pH in Plot B If your answers contain decimals, round them to two decimal places The t-value should be a positlve number. This is accomplished by setting N1to the larger of the two means Here is the equation for a two tailed unpaired t-test. Use excel or sheets to calculate the components of the equation and then use a formula in excel or sheets to do all the arithmetic in one step. Do not round until the very end X1 X2 calc What is the average pH in Plot A? What is the average pH in plot B? What is N for Plot A? What is N for Plot B? What is the standard deviation for Plot A? What is standard deviationfor the Plot B? How many degrees of freedom does this experiment have? What will the numerator for the t-test equal? What will the denominator for the t-test equal?

Explanation / Answer

Average pH of plotA=4.89

Average pH of plot B=4.33

N FOR BOTH plot A and B= 20

Standard deviation for plot A 0.066

Standard deviation for plot B=0.073

Degree of freedom n-1=20-1=19

Numerator for the test =0.56

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