Use the given confidence interval to find the margin of error and the sample mean. (13.6,22.8)
Home
Use the given confidence interval to find the margin of error and the sample mean. (13.6,22.8)
feel free to call us +800.241.0630 russ@russellcoder.com
Related Articles

A credit card company claims that the mean credit card debt for individuals is greater than $ 5000. You want to test this claim. You find that a random sample of 30 cardholders has a mean credit card balance of $ 5202 and a standard deviation of $ 600. At alpha equals 0.01, can you support the claim? Complete parts (a) through (e) below. Assume the population is normally distributed.
russellc, , Statistics, 0
see excel spreadsheet. This your answer

Use the confidence interval to find the margin of error and the sample mean.
russellc, , Statistics, 0
(0.264,0.460) The margin of error is 0.098.The sample mean is .3620.

Use the given statement to represent a claim. Write its complement and state which is Upper H 0 and which is Ha. p < 0.55
russellc, , Statistics, 0
Part A is the answer. A. Pick the opposite of the "equation" see excel spreadsheet. This your answer B....


In a survey of 641 males ages 1864, 394 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. The 90% confidence interval for the population proportion p is The 95% confidence interval for the population proportion p is Interpret your results of both confidence intervals. Which interval is wider?
russellc, , Statistics, 0 


Find the margin of error for the given values of c, sigma, and n.
russellc, , Statistics, 0
c = 0.95. a = 2.1, n = 36 Answer 0.686