Answer:
p value = 0.039
t = - 2.169
Step-by-step explanation:
Applying the null and alternate hypothesis
using excel worksheet to calculate for ( t and p )
t = -2.169
p = 0.039
from the results obtained
The conclusion is affected by the significance level because : 0.1 < p > 0.01
so when the significance level is = 0.1 the Null hypothesis is rejected and we can say the mean time interval will change while
if the significance level = 0.01 the Null hypothesis is accepted and we can not say the mean time interval has changed because the p -value is greater than 0.01
attached is the excel solution
If I’m not mistaken it is 5^31
They have to have the same denominator
It's an irrational number because it's does not repeating in the same order (the one with a dash above it), and you can't change it into any other form of number, such as fraction or square root of something, so it's an irrational number.
Answer:
(x + 4) and (x + 2)
Step-by-step explanation:
Given
x² + 6x + 8
Consider the factors of the constant term (+ 8) which sum to give the coefficient of the x- term (+ 6)
The factors are + 4 and + 2, since
4 × 2 = 8 and 4 + 2 = 6, thus
x² + 6x + 8 = (x + 4)(x + 2)