Question

A big toe problem. Hallux abducto valgus (call it HAV) is a deformation of the big toe that often requires surgery. Doctors used X-rays to measure the angle (in degrees) of deformity in 38 consecutive patients under the age of 21 who came to a medical center for surgery to correct HAV. The angle is a measure of the seriousness of the deformity. Here are the data: 28 32 25 34 38 26 25 18 30 26 28 13 20 21 17 16 21 23 14 32 25 21 22 20 18 26 16 30 30 20 50 25 26 28 31 38 32 21 It is reasonable to regard these patients as a random sample of young patients who require HAV surgery. Carry out the Solve and Conclude steps for a 95% confidence interval for the mean HAV angle in the population of all such patients.

          A big toe problem. Hallux abducto valgus (call it HAV) is a deformation of the big toe that often requires surgery. Doctors used X-rays to measure the angle (in degrees) of deformity in 38 consecutive patients under the age of 21 who came to a medical center for surgery to correct HAV. The angle is a measure of the seriousness of the deformity. Here are the data:
28 32 25 34 38 26 25 18 30 26 28 13 20 
21 17 16 21 23 14 32 25 21 22 20 18 26 
16 30 30 20 50 25 26 28 31 38 32 21
It is reasonable to regard these patients as a random sample of young patients who require HAV surgery. Carry out the Solve and Conclude steps for a 95% confidence interval for the mean HAV angle in the population of all such patients.

A big toe problem. Hallux abducto valgus (call it HAV) is a deformation of the big toe that often requires surgery. Doctors used X-rays to measure the angle (in degrees) of deformity in 38 consecutive patients under the age of 21 who came to a medical center for surgery to correct HAV. The angle is a measure of the seriousness of the deformity. Here are the data:
28 32 25 34 38 26 25 18 30 26 28 13 20
21 17 16 21 23 14 32 25 21 22 20 18 26
16 30 30 20 50 25 26 28 31 38 32 21
It is reasonable to regard these patients as a random sample of young patients who require HAV surgery. Carry out the Solve and Conclude steps for a 95% confidence interval for the mean HAV angle in the population of all such patients.

Added by Johnathan D.

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