A Researcher Has Developed a Regression Model from 26 Pairs

question 73

Multiple Choice

A researcher has developed a regression model from 26 pairs of data points. He wants to test if the slope is significantly different from zero. He uses a two? tailed test and ɑ = 0.01. The degrees of freedom for the critical table t value is ___.

• A) 23
• B) 24
• C) 26
• D) 25
• E) 27

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