Dog Temperature [2 points]

A veterinary school would prefer to take dog temperatures using an laser ear thermometer, instead of the old physical way. To test the new ear thermometer, the school uses the thermometer on 37 healthy dogs. The sample mean temperature was x? = 39.02 degrees C, with a sample standard deviation of s = 0.54 degrees.

2A. Compute a 99% confidence interval for population mean temperature for dogs. Use bounds form.

2B. To test the claim that population mean temperature is 38.9 degrees C or is different from 38.9 degrees C, what are the null and alternative hypotheses?

2C. Using the confidence interval from part 2A, make a decision and briefly explain why you made that decision.