Answer: C. There is sufficient evidence to support the claim .![\mu>140](https://tex.z-dn.net/?f=%5Cmu%3E140)
Step-by-step explanation:
Given (claim) :The mean monthly gasoline bill for one household is greater than $140.
Let
be the population mean.
Then, the set of hypothesis for this claim will be:-
![H_0:\mu\leq140\\\\ H_a:\mu>140](https://tex.z-dn.net/?f=H_0%3A%5Cmu%5Cleq140%5C%5C%5C%5C%20H_a%3A%5Cmu%3E140)
If a hypothesis test is performed , then to interpret a decision that fails to reject the null hypothesis we says that there is sufficient evidence to support the claim ![\mu>140](https://tex.z-dn.net/?f=%5Cmu%3E140)
I think you divide 1/2 by -2/5 and then add that to -1/4....
Answer:
0.3
Step-by-step explanation: