A study was conducted among individuals with chronic pain to

A study was conducted among individuals with chronic pain to determine how effective acupuncture is in relieving pain. A random sample of 15 subjects were chosen and their sensory rates were measured. Assume that the measurements on sensory rates follow a normal distribution.The data from the study are given below: 8.6 9.4 7.9 6.8 8.3 7.3 9.2 9.6 8.7 11.4 10.3 5.4 8.1 5.5 6.9

(f) Calculate the 95% confidence interval for the mean sensory rate.

(i) What is the value of the lower bound of the 95% confidence interval? (Round your answer to the nearest 2 decimal places)

(ii) What is the value of the upper bound of the 95% confidence interval? (Round your answer to the nearest 2 decimal places)

(e) What is the margin of error for the 95% confidence interval for the mean sensory rate? (Round your answer to the nearest 2 decimal places)

Solution