Find the critical values x1-g/2 and x/2 for a 95% confidence level and a sample size of n = 10. 21-a/2= (Round to three decimal places as needed.)

For a 95% confidence interval and n=21 give the Chi-squared right value.

Create a 85% confidence interval for a population mean from a sample of size 65 with sample mean a = 11.7. The population standard deviation is known to be o = %3D 3.28. [three decimal accuracy] [three decimal accuracy]

Estimate the minimum sample size needed to achieve the margin of error E=0.013 for a​ 95% confidence interval.

If x=76 ₁² = 14 and n=65, Construct a 95% Confidence interval estimate of the population mean, pe الكيك

Find the critical value tc for the confidence level c=0.80 and sample size n=16. Tc= (round to the nearest thousandth as needed)

Apply the t-interval procedure to find a 95% confidence interval for the mean arterial blood pressure of 8 children sampled if x=85.99 mm Hg and s=8.08 mm Hg

You are going to create a 99% confidence interval for the mean amount ofsugar in coffee shop specialty drinks. You know the population standarddeviation is σ = 5.9 grams. You want your confidence interval to have amargin of error of 0.25 grams. How big should your sample size be to obtainthis margin of error?

Find the critical value zα/2 needed to construct a(n) 99.2% confidence interval.

Find the lower and upper X ² critical values at 80% confidence and sample size 16. Round to the 3 decimal places