If n=41n=41, ¯xx¯=36, and s=9s=9, find the margin of error for a 80% confidence level.

Construct a 96% confidence interval if x=75 and n=200. Round your answers to 3 decimal places.

If n=17, x bar = 39, and s=8, find the margin of error at a 99% confidence level.  Give the answer to two decimal places.

If n = 550 and X = 440, construct a 90% confidence interval for the population proportion, p. Give your answers to three decimals < p <

If n=11, 7(x-bar)=45, and s=5, construct a confidence interval at a 95% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place.

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

If a 95% Confidence for the Population Proportion is (0.56, 0.78), fınd its Margin of Error.

Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 29. (Round your answer to three decimal places.)

If n=22, (x-bar)=34, and s=17, construct a confidence interval at a 99% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place.

Christina wants to know the true average number of pages in a typical textbook. She randomly selects 196 books, and they have an average of 161 pages. Calculate a 90.3% confidence interval if you are given that the standard deviation for a single book is 75 pages.