Answer:
The value of the test statistic is 
Step-by-step explanation:
The null hypothesis is:
The alternate hypotesis is:
Our test statistic is:
In which X is the sample mean, 
is the value tested at the null hypothesis, 
is the standard deviation(square roof of the variance) and n is the size of the sample.
In this problem, we have that:
So
The value of the test statistic is
Answer: 220 yards
Step-by-step explanation:
1 mile equals 1,760 yards
1,760 ÷ 8 = 220 yards
8/8 is 1... so that 1 is equal to the 1,760
You could divide it by 8 as shown above OR to double check yourself.. take your answer of 220 yards and add that 220 to 220 a total of 8 times which will give you your 1 mile equaling to 1,760 total yards which makes 1/8 mile equal the 220 yards. (I really hope this helps and makes sense as to how I figured that out for you:-) )
Answer:
76 is the correct one. So you surely go for it
