Answer:
This explanation is not correct
Explanation:
Significance level is the probability that the null hypothesis rejected is in fact true. If we say there is a significance level of 0.10 or 10%(α=0.10 level) then there is a 10% chance of incorrectly rejecting the null hypothesis when there is actually no difference.
If we wish to reach a conclusion on rejection or acceptance of the null hypothesis, we could use the p value(the probability that observed results or more extremee results are true given null hypothesis)which we compare with the significance level to conclude. If the significance level is 0.10 and p value is 0.07(since p value is less than significance level) , we reject the null hypothesis and vice versa.
Answer:
a(A) = 0
Step-by-step explanation:
Answer:
The value is 
Step-by-step explanation:
From the question we are told that
The sample size is n = 24
The mean is
The standard deviation is 
Generally the probability that a randomly chosen student earned a B or higher on the test (score of 80 or higher ) is mathematically represented as


=> 
From the z table the area under the normal curve to the right corresponding to -0.225 is

=> 
Answer:
6 units
Step-by-step explanation:
Point A (-2, 1)
Point B (4, 1)
Length of AB is the distance between x₁ and x₂ as y₁=y₂=1
AB= x₂- x₁= 4-(-2)= 6 units
Answer is 6 units
The median of the data below is 1