Answer:
p value = 0.039
t = - 2.169
Step-by-step explanation:
Applying the null and alternate hypothesis
![H_{0} : U1 = U2](https://tex.z-dn.net/?f=H_%7B0%7D%20%3A%20U1%20%3D%20U2)
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
Answer:
1. 3x - 24 = 6
2. 3x = 30
3. x = 10
Step-by-step explanation:
1. 3 times x is 3x, 3 times 8 equals 24, hence 3x - 24
2. Add 24 to both sides to get rid of -24, getting you 3x = 30
3. Divide by 3 on both sides to even out the x, giving you x = 10
Answer:
sqrt d = 10
d = (10)^2
d = 100
Part b
x^2 = 144
x = 12 or -12
Step-by-step explanation: