Answer:
X=9
Step-by-step explanation:
Answer:
a)![t_{crit}= 1.34](https://tex.z-dn.net/?f=%20t_%7Bcrit%7D%3D%201.34)
b) ![t_{crit}=-2.539](https://tex.z-dn.net/?f=%20t_%7Bcrit%7D%3D-2.539%20)
c) ![t_{crit}=\pm 2.228](https://tex.z-dn.net/?f=%20t_%7Bcrit%7D%3D%5Cpm%202.228)
Step-by-step explanation:
Part a
The significance level given is
and the degrees of freedom are given by:
![df = n-1= 15](https://tex.z-dn.net/?f=%20df%20%3D%20n-1%3D%2015)
Since we are conducting a right tailed test we need to find a critical value on the t distirbution who accumulates 0.1 of the area in the right and we got:
![t_{crit}= 1.34](https://tex.z-dn.net/?f=%20t_%7Bcrit%7D%3D%201.34)
Part b
The significance level given is
and the degrees of freedom are given by:
![df = n-1= 20-1=19](https://tex.z-dn.net/?f=%20df%20%3D%20n-1%3D%2020-1%3D19)
Since we are conducting a left tailed test we need to find a critical value on the t distirbution who accumulates 0.01 of the area in the left and we got:
![t_{crit}=-2.539](https://tex.z-dn.net/?f=%20t_%7Bcrit%7D%3D-2.539%20)
Part c
The significance level given is
and
and the degrees of freedom are given by:
![df = n-1= 11-1=10](https://tex.z-dn.net/?f=%20df%20%3D%20n-1%3D%2011-1%3D10)
Since we are conducting a two tailed test we need to find a critical value on the t distirbution who accumulates 0.025 of the area on each tail and we got:
![t_{crit}=\pm 2.228](https://tex.z-dn.net/?f=%20t_%7Bcrit%7D%3D%5Cpm%202.228)
If I remember My geometry correctly
you add GH AND EF then divide 2
Step-by-step explanation:
VAT = 250*15%
VAT = 250*15/100
VAT = 37.5 therefore
total price add VAT =250+37.5
=287.5
Answer:
where are the choices?
Step-by-step explanation:
need choices to help you