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In a study of the effects of marijuana research, light and heavy users of marijuana were...

In a study of the effects of marijuana research, light and heavy users of marijuana were tested for memory recall, with the results shown below:  


       Sample size Sample Mean Sample SD
  Items sorted correctly by light marijuana users:      20 53.3 3.6
  Items sorted correctly by heavy marijuana users: 20 51.3 4.5


This sample data is used along with a .05 significance level to test the claim that the population of heavy marijuana users has a standard deviation that is different from that of light users.

What is the p-value?

math   Statistics-And-Probability   
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Answer #1

-Ang Given data is and = 3.6 2 =53.3 ni = 20 ) si S2 = 4.5 and 6=0.05 and 92= 20, st2=51.3 Ho : 0 ² 02 → The Hypotheses are:

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