A clinical trial was conducted to test the sectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 20 subjects had a mean wake time of 9 9 min and a standard deviation of 438 min. Assume that the sample values appear to be from a normally distributed population and constructa 95% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments Does the result indicate whether the treatment is effective? Find the confidence interval estimate mno* min (Round towe decimales ded) Dous mere indicate whether the treatment is effective? OA No, the confidence Werval does not indicate whether the man is elfective OB Yes, the confidence Merval indicates that the treatment is not effective because the interval does not contain 89 minutes OG Yes, the confidence interval indicates that the treatment is elective because the intervalcontains minutes OD. You the confidence interval indicates that the treatment is not effective because the interval does not contain minutes OE Yes, the confidence interval indicates that the treatment is not affedive because the intervalcontain minutes OF Yes, the confidence interval indicates that the treatment is effective because the interval does not contain 0 minutes OG Yes, the confidence interval indicates that the treatment is effective because the interval does not contain 9 minutes