P-value! Help

[hasanein4u]

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hey guys

my test is tomorrow and I have seen topics talking about p-value

Is it the questions that shows up in destroyer and use the rule (68, 95, 99.7)?

if it is something else could you please give a brief explanation just in case it will show up in my exam?

 

[412smb412]

hey guys

my test is tomorrow and I have seen topics talking about p-value

Is it the questions that shows up in destroyer and use the rule (68, 95, 99.7)?

if it is something else could you please give a brief explanation just in case it will show up in my exam?

within 1 standard deviation of the mean = 68%
2 = 95%
3 = 99.7%

eg: average score of a test is 80 with a standard deviation of 5

percent of students who scored btwn 75 - 85 = 68% (one standard deviation of the mean from both sides aka 80-5 = 75 and 80+5 = 85.