Answer:
20 percent
Step-by-step explanation:
40 dollars they each spent 40 dollars from 70 dollars
Answer:
13.4±2.132(1.02/5)
Step-by-step explanation:
Khan Academy
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:
Step-by-step explanation:
<u>Given:</u>
<u>Solving for x:</u>