In a sample of 26 participants,a researcher estimates the 90% CI for a sample with a mean of M_D = 0.6 and an estimated standard error for the difference scores (S_MD)of 0.1.What is the upper confidence limit for this interval? A) 0.77 B) -0.5 C) 1.7 D) 2.5

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Quizplus · Accepted Answer

To find the upper confidence limit, we need to use the formula: Upper limit = M_D + (critical value * standard error) The critical value for a 90% confidence interval with 26 degrees of freedom is 1.699. Plugging in the values, we get: Upper limit = 0.6 + (1.699 * 0.1) Upper limit = 0.77 Therefore, the answer is A) 0.77.

In a Sample of 26 Participants,a Researcher Estimates the 90