A sample of 18 observations taken from a normally distributed population produced the following data: 28.5...
A sample of 18 observations taken from a normally distributed population produced the following data: 28.1 27.2 25.1 25.2 31.2 23.5 26.4 24.3 28.2 37.2 23.6 28.9 27.9 25.5 27.3 25.3 22.4 22.7 Round your answers to three decimal places. a. What is the point estimate of ? b. Make a 90% confidence interval for u. c. What is the margin of error of estimate for p in part b? E =
Need Help ASAP 8.36 A random sample of 18 observations taken from a normally distributed population produced the following data: 28.4 27.3 37.2 23.9 25.5 25.5 28.7 27.9 31.1 23.0 26.3 24.6 28.4 25.1 27.2 25.3 22.6 22.7 a. What is the point estimate of μ? b. Make a 99% confidence interval for μ. c. What is the margin of error of estimate for μ in part b?
A sample of 18 observations taken from a normally distributed population produced the following data: 28.3 27.3 25.4 25.3 31.4 23.4 26.3 24.4 28.1 37.3 23.6 28.6 27.7 25.5 27.5 25.4 22.5 22.9 Round your answers to three decimal places. a. What is the point estimate of μ? x¯= b. Make a 95% confidence interval for μ. (,) c. What is the margin of error of estimate for μ in part b? E=
A sample of 18 observations taken from a normally distributed population produced the following data: 28.1 27.4 25.1 25.1 31.5 23.3 26.2 24.3 28.4 37.1 23.5 28.8 27.5 25.4 27.1 25.4 22.7 22.7 Round your answers to three decimal places a. What is the point estimate of ? b. Make a 95% confidence interval for a. What is the point estimate of b. Make a 95% confidence interval for c. What is the margin of error of estimate for in...
A random sample of 18 observations taken from a population that is normally distributed produced a sample mean of 42.4 and a standard deviation of 8. Find the range for the p- value and the critical and observed values of t for each of the following tests of hypotheses using, a = 0.01. Use the t distribution table to find a range for the p-value. Round your answers for the values of t to three decimal places. a. Ho:u= 46...
Arandom sample of 21 observations taken from a population that is normally distributed produced a sample mean of 58.5 and a standard deviation of 7.5. Find the range for the p-value and the critical and observed values of tfor the following test of hypothesis, using a = 0.01. Ho: = 55 versus H: > 55. Use the t distribution table to find a range for the p-value Round your answers for the values oft to three decimal places. <p-value torta...
Question 1: A random sample of 22 observations taken from a population that is normally distributed produced a sample mean of 58.5 and a standard deviation of 7.5. Find the range for the p-value and the critical and observed values of t for the following test of hypothesis, using α = 0.01 . H 0 : μ = 55 versus H 1 : μ > 55 . Use the t distribution table to find a range for the p-value. Question 2: A...
random sample of 16 observations was taken from a normally distributed population. The average in the sample was 80 with a variance of 144. a Construct a 90% confidence interval for 1. b. Construct a 99% confidence interval for . c. Discuss why the 90% and 99% confidence intervals are different. What would you expect to happen to the confidence interval in part a if the sample size was increased? Be sure to explain your answer d.
A sample of 10 observations from a normally distributed population produced the following data: 22 20 28 34 26 21 26 30 25 31 Construct a 95% confidence interval for the population mean. 23.05 to 29.55 25.66 to 30.94 24.10 to 30.50 23.48 to 29.12
A random sample of five observations from three normally distributed populations produced the following data: (You may find it useful to reference the F table.) Treatments 22 28 23 XA = 24.8 SA = 48.2 25 XR = 21.6 = 27.3 24 23 27 = 24.0 = 21.0 X d. Specify the competing hypotheses in order to determine whether some differences exist between the population means. OHO: MA - MB - MC; HA: Not all population means are equal. OHO:...