Jazak Allah for this!
Please can you tell me the anwer for Q6)b) part. The answer to this is 3.2x10^-19, why cant it be 1.6x10^-19?
http://maxpapers.com/wp-content/uploads/2012/11/9702_s12_qp_42.pdf
Check in which direction the value of your critical value(For t-test) or x^2(For chi-squared test) proceeds, always check relative to probability 0.05 and by checking the degrees of freedom. If the probability increases (if it proceeds in the direction of increasing probability) then this means...
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