Turn 39% into a decimal
0.39
"of" means to multiply
so we get
0.39 * 72 = x
Try shutting of things that could distract you. (Television, phone, computer etc.)
Get away from noise; go somewhere quiet.
Answer:
(a) P-value = 0.074, α = 0.05 do not reject H0
(b) P-value = 0.006, α = 0.001 do not reject H0
(c) P-value = 0.494, α = 0.05 do not reject H0
(d) P-value = 0.074, α = 0.10 reject H0
(e) P-value = 0.028, α = 0.01 do not reject H0
(f) P-value = 0.296, α = 0.10 do not reject H0
Step-by-step explanation:
The p-value is used to determine the statistical significance of the results of a statistical test. The p-value is the probability that the null hypothesis is correct. Smaller the p-value, higher is the probability that the alternate hypothesis is correct. On the other hand, the significance level (α) is the probability of rejecting the null hypothesis when it is true. It is the risk that you are willing to take in saying that there are differences between groups when there are not.
In order to reject the null hypothesis, the p-value should be lower than the significance level (α).
The "mean" is just the normal arithmetic average that you are most likely already familiar with.
mean=(sum of elements)/(number of elements)
In this case:
mean=(2+28+2+20+22)/5
mean=74/5
mean=14.8
So the mean or average age of the trees is 14.8 years.
