Answer:
H0 : μ = 6.2
H1 : μ ≠ 6.2
Step-by-step explanation:
Population mean, μ = 6.2 ppm
The hypothesis :
Null, H0 : = The mean level of Ozone is normally 6.2 ppm ;
The alternative hypothesis is the researcher's claim that the current ozone level is not normal, that is it may be higher or lower than the normal value in ppm
Hence, the hypothesis could be written as :
H0 : μ = 6.2
H1 : μ ≠ 6.2
-18 and +2
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Answer:
4
Step-by-step explanation:
I am not 100% sure but I really hope this helps you.
(46 2/3) / (1/3) =
(140/3) / (1/3) =
140/3 * 3/1 =
420/3 =
140 <=== 140 can be made
