Question

Health care workers who use latex gloves with glove powder on a daily basis are particularly susceptible to developing a latex allergy. Each in a sample of 40 hospital employees who were diagnosed with a latex allergy based on a​ skin-prick test reported on their exposure to latex gloves. The sample mean is 30.8 and the standard deviation is 11.7. What is a range of 95% confidence interval for the average number of latex gloves used per week by all health care workers with a latex allergy (difference of the lower bound and upper bound)? Round your final answer to two decimal places as needed.

Answer 1