write my assignment 1526

A researcher is interested in whether students who attend private elementary schools do any better on s standard test of intelligence than the general population of elementary school children. A random sample of 75 students at a private elementary school is tested and has a mean intelligence test score of 103.5. The average for the general population of elementary school children is 100 (σ = 15).a) Is this a one- or a two- tailed tests?b) What are Ho and Ha for this study?c) Compute zobtd) What is zcv?e) Should Ho be rejected? What should the researcher conclude?f) Calculate the 95% confidence interval for the population mean, based on the sample mean..