Answer:
what topic???????????????????
Answer:

Step-by-step explanation:
From the given information:
The sample size is 28
The population mean is 24.5 (ppb)
The sample mean is 225.3 (ppb)
Thus, the null and the alternative hypothesis can be computed as:
Null hypothesis:

Alternative hypothesis:

He spent 26.95 on each. It's just 80.85/3 =26.95
Answer:
a. R>S
b. It means that R is to the right of S
c. City R is warmer
Step-by-step explanation: