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MODULE 5: THE T-TEST PORTAGE LEARNING STATISTICS CNSL 503, THE T-TEST WITH CORRECT SOLUTIONS
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May 2026

2025/2026

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When population standard deviation is known, the z-score is used, when population standard deviation is unknown, the __ is used - ANSWER-t-score True/False Since t-scores are centered normally around the mean and form a bell-shaped curve, probabilities can be calculated to draw inferences about populations. - ANSWER-True ___ determine how well the t-distribution approximates the normal distribution of the z-scores. To calculate for any sample size, n-1 - ANSWER-Degrees of freedom (df) ...
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