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:

The answer is D 105 because i know
Answer:
8, 8x square root of 3
Step-by-step explanation:
16=2x
x=8