Assuming that the weight difference before and after weight loss has a normal distribution, find a 95% confidence interval for the average weight loss of customers of this company.
Assuming that the weight difference before and after weight loss has a normal distribution, the company's customers are asked to lose an average weight of 95% confidence interval.
Assuming that the weight difference before and after weight loss has a normal distribution, the 95% confidence interval of the average weight loss of the company's customers is calculated.