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The S&P/TSX Composite Index rose 3.4%, dropped 1.4%, and then rose 2.1% in 3 successive months. The Index ended the 3-month period at 9539.
a) What was the Index at the beginning of the 3-month period?
b) How many points did the Index drop in the second month?
P-Value
The probability of obtaining a test statistic at least as extreme as the one observed during a test, assuming the null hypothesis is true.
Rejection Rules
Guidelines used in hypothesis testing that determine the circumstances under which the null hypothesis should be rejected.
P-Value
Assuming the null hypothesis is applicable, it refers to the chance of recording test results that are at least as notable as the ones actually experienced.
Level Of Significance
The probability of rejecting the null hypothesis when it is actually true, often denoted by alpha (α).
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