Describe how well the memory test scores and length of television commercial are linearly related ...

       Question 16.28               Statistical   Data:       Lengths:   x = 38.00,s2x = 193.90      Test:   y = 13.80, s2x = 47.96      n   = 60, s2x = 51.86               a.   What is the standard error of estimate? Interpret its value.   b.   Describe how well the memory test scores and length of television commercial   are linearly related?   c.   Are the memory test scores and length of commercial linearly related? Test   using a 5% significance level.   d.   Estimate the slope coefficient with 90% confidence.