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help me choose the correct answer.....A researcher took a sample of 21 male psychologists and 21 female psychologists to explore whether their wages are significantly
help me choose the correct answer.....A researcher took a sample of 21 male psychologists and 21 female psychologists to explore whether their wages are significantly different. The population standard deviation for each group is unknown. At 10% significance level, the critical value is _______________ Question 32 options: a) 1.684 b) 1.28 c) 1.303 d) +/-1.28 e) +/- 1.684
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