Answer:
Decision rule: Do not reject
; we cannot conclude that the mean differs from zero
Step-by-step explanation:
From the given information:
The null hypothesis and alternative hypothesis is given as:
![H_o: \mu = 0 \\ \\ H_1 : \mu \ne 0](https://tex.z-dn.net/?f=H_o%3A%20%5Cmu%20%3D%200%20%5C%5C%20%5C%5C%20H_1%20%3A%20%5Cmu%20%5Cne%200)
And the 99% confidence interval for the population mean
is: [−3.79, 5.86]
The significance level ∝ = 1 - 0.99 = 0.01
We will notice that the 99% confidence interval for the population mean
contains the null hypothesis mean value which is equal to zero.
Thus, we do not reject the null hypothesis at the significance level ∝ = 0.01
∴
Decision rule: Do not reject
; we cannot conclude that the mean differs from zero
Greetings from Brasil...
According to the statement of the question, we can assemble the following system of equation
X = 7 + 3Y i
X + Y = 75 ii
So, multiplying ii by -1 and adding with i
X = 7 + 3Y
- X - Y = - 75
- Y = 7 + 3Y - 75
4Y = 68
Y = 17
for X we will use ii:
X + Y = 75
X + 17 = 75
X = 58
The smaller number is: 17
F(x) = -3 + 7 = 4
g(x) = -7 + 3 = -4
f(-3) - g(3) = 4 - (-4) = 4 + 4 = 8
Answer:11 hours
Step-by-step explanation:
There duration bmis 11hours