In a Sample of 12 Participants,a Researcher Estimates the 80

question 2

Multiple Choice

In a sample of 12 participants,a researcher estimates the 80% CI for a sample with a mean of M = 22.3 and an estimated standard error ( ) of 4.7.What is the confidence interval at this level of confidence?

• A)80% CI 12.1,32.5
• B)80% CI 17.6,27.0
• C)80% CI 15.9,28.7
• D)There is not enough information to answer this question.

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