Kyphosis refers to severe forward flexion of the spine following corrective spinal surge...

Kyphosis refers to severe forward flexion of the spine following corrective spinal surgery. A study carried out to determine risk factors for kyphosis reported the accompanying ages (months) for 40 subjects at the time of the operation; the first 18 subjects did have kyphosis and the remaining 22 did not.

Use the Minitab logistic regression output on page 543 to decide whether age appears to have a significant impact on the presence of kyphosis.