Do 340 ✖️0.20, and you'll get 68. Since that's 20% of 340, do 340 ➖ 68 and you'll get your final answer.
There is no question here
Answer:
Step-by-step explanation:
From the question we are told that
The sample size is n = 15
The level of significance is ![\alpha = 0.05](https://tex.z-dn.net/?f=%5Calpha%20%3D%20%200.05)
The null hypothesis is ![H_o:\mu_1 = \mu_2 = \mu_3](https://tex.z-dn.net/?f=H_o%3A%5Cmu_1%20%3D%20%5Cmu_2%20%3D%20%5Cmu_3)
The alternative hypothesis is ![H_a : \mu_1 \ne \mu_2 \ne \mu_3](https://tex.z-dn.net/?f=H_a%20%3A%20%5Cmu_1%20%5Cne%20%5Cmu_2%20%5Cne%20%5Cmu_3)
Generally the degree of freedom is mathematically represented as
![df = 5 + 5 + 5 - 3](https://tex.z-dn.net/?f=df%20%20%3D%20%205%20%2B%20%205%20%2B%20%205%20%20-%203)
=> ![df = 12](https://tex.z-dn.net/?f=df%20%20%3D%20%2012)
Generally the critical value of
at a degree of freedom of
is
![t_{0.05 , 12} = \pm 2.1788](https://tex.z-dn.net/?f=t_%7B0.05%20%2C%2012%7D%20%3D%20%5Cpm%202.1788)
Answer:
4
Step-by-step explanation: