Use technology and the given confidence level and sample data to find the confidence interval for the population mean mu. assume that the population does not exhibit a normal distribution. weight lost on a diet: 99 % confidence n = 41 x overbar = 4.0 kg s = 5.3 kg what is the confidence interval for the population mean mu? is the confidence interval affected by the fact that the data appear to be from a population that is not normally distributed?

Which quadratic function best fits this data? x y 1 32 2 78 3 178 4 326 5 390 6 337 a. y=11.41x2+154.42x−143.9 b. y=−11.41x2+154.42x−143.9 c. y=11.41x2+154.42x+143.9 d. y=−11.41x2+154.42x+143.9

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.