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Mathematics, 24.03.2020 02:49 hit89

In order to test if the mean returns on a major index have changed from the historic monthly average of 1.2%, a sample of 36 recent monthly returns is used to calculate the value of the relevant test statistic. At the 5% level of significance, we reject the null hypothesis if this value is .a) Greater than 1.69
b) Greater than 1.645
c) Greater than 1.96 or less than -1.96
d) Greater than 2.03 or less than -2.03

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