$55 this is shown by doing 80/100=0.80. and 0.80*55=this is the answer
Answer: Two-tailed test.
Population mean is the parameter which is tested.
Step-by-step explanation:
Given :
We know that , the alternative hypothesis () indicates kind of the hypothesis test we need to perform whether left-tailed, right-tailed, or two-tailed.
Here, the alternative hypothesis () is two-tailed, so the hypothesis test is a two-tailed test.
Also, the parameter present in the hypothesis is which is a symbol to represent the population mean.
Thus , Population mean is the parameter which is tested.
Answer:
x=2
......
Step-by-step explanation:
x=3+1/x
x^2=4
x=2