30 Randomly selected took the calculus final .if the sample mean was 95 and the standard deviation was 7.4 with a 99% ofconfidence interval mean score of all students. ‘ The t-score corresponding to a 99% confidence level and 29degrees of fi’eedom is 2.756.The margin of error is:• sE • l’a/z7.4 ‘E = 2.756mJE = 3.723The confidence interval f – E <… Get Statistics …
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