Critical Value Refer to Exercise 7 “Requirements” and assume that the requirements are satisfied. Find the critical value that would be used for constructing a 95% confidence interval estimate of μ  using the t distribution.

Use technology to construct the confidence intervals for the population variance σ2and the population standard deviation σ.Assume the sample is taken from a normally distributed population.   c=0.90​, s^2=8.41​, n=25 The confidence interval for the population variance is

Identify the p-value & confidence interval

total plasma volume is important in determining the required plasma component in blood replacement therapy for personal growth and surgery plasma volume is influenced by the overall health and physical activity of an individual suppose that a random sample 50 male firefighters are tested in that they have a plasma volume sample mean of x=37.5 ml/kg assume thqy o=7.720 ml/kg for the distribution of blood plasmaFind a 99% confidence interval for the population mean blood plasma volume in male firefighters. What is the margin of error? lower limit? Upper limit?