Construct a confidence interval for ud, the mean of the differences d for the population of paired data. Assume that the population of paired differences is normally distributed. If a = 3.125, Sd = 2.911, and n = 8, determine a 95 percent confidence interval for ud. 0.691 Hd <3.986 O 2.264 Hd < 3.986 O 2.264 Hd < 5.559 O 0.691 Hd < 5.559

Assume that population mean is to be estimated from the sample described. Use the sample results to approximate the margin of error and​ 95% confidence interval.   n=49​, x=55.1 ​seconds, s=4.8 seconds       The margin of error is nothing seconds.

We have presented a confidence interval (CI) for the difference, μ1 − μ2, between two population means. Interpret each confidence interval. 95% CI is from 15 to 20.

A veterinarian wants to estimate the mean weight of a cat in their city. They take a random sample of 19 cats and found a mean of 10.9 lbs with a sample standard deviation of 1 lbs. Find the 95% confidence interval of the mean. Assume that the cat weights are normally distributed. Do not round in between steps. Round answers to at least 4 decimal places.

Construct a 95​% confidence interval of the population proportion using the given information.   x=80   n= 200   Give lower and upper bound

Solve for B which reads assume prior studies have shown that about 45% of full-time students are in bachelors degree and four years or less. n=

A 90% confidence interval for a population mean is (10, 20). What is the margin of error of the interval?

If n = 110 and X = 88, construct a 99% confidence interval for the population proportion, p.Give your answers to three decimals <             p             <

Find z* for a confidence level of 83%. Give your answer to 3 decimal places.

Construct a 95​% confidence interval of the population proportion using the given information. x=45, n=150   The lower bound is  The upper bound is