If it given that the proportion of homes with fire extinguishers is .80, what is the null hypothesis and alternative hypothesis?
It is given that the proportion of homes with fire extinguishers is 0.8
If a large number of homes are randomly selected it is found that 0.8 of the homes have a fire extinguisher or the mean number of homes with a fire extinguisher is `mu` = 0.8
The null hypothesis refers to the criterion that is being assumed to be true.
In the problem, the null hypothesis is `H_0` : `mu` = 0.8
The alternative hypothesis refers to the case where the null hypothesis is not true.
Here, the alternative hypothesis would be `H_1` : `mu != 0.8`