Question

#1 Use the confidence level and sample data to find a confidence interval for estimating the...

#1 Use the confidence level and sample data to find a confidence interval for estimating the population μ. Find the margin of error E and round your answer to the nearest tenth. Test scores: n = 93, LaTeX: \bar{x}x ¯ = 88.5, σ = 6; 99% confidence

#2 A sociologist develops a test to measure attitudes towards public transportation, and n = 82 randomly selected subjects are given the test. Their mean score is LaTeX: \bar{x}x ¯ = 75.9 and their standard deviation is s = 16.4. Find the margin of error E for the 95% confidence interval for the mean score of all such subjects, and round to the nearest tenth.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A sociologist develops a test to measure attitudes towards public transportation, and n = 79 randomly...
A sociologist develops a test to measure attitudes towards public transportation, and n = 79 randomly selected subjects are given the test. Their mean score is x ¯ = 74.3 and their standard deviation is s = 18.7. Find the margin of error E for the 95% confidence interval for the mean score of all such subjects, and round to the nearest tenth.
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given degree of confidence and sample data to construct a confidence interval for the population mean μ. Assume that the population has a normal distribution. A sociologist develops a test to measure attitudes towards public transportation, and 27 randomly selected subjects are given the test. Their mean score is x ¯ = 76.2 and their standard deviation is s = 21.4. Construct the 95% confidence interval for the mean score of all such subjects.
Use the given degree of confidence and sample data to find a confidence interval for the...
Use the given degree of confidence and sample data to find a confidence interval for the population standard deviation σ. Assume that the population has a normal distribution. Round the confidence interval limits to the same number of decimal places as the sample standard deviation. A sociologist develops a test to measure attitudes about public transportation, and 27 randomly selected subjects are given the test. Their mean score is 76.2 and their standard deviation is 21.4. Construct the 95% confidence...
Use the confidence level and sample data to find a confidence interval for estimating the population...
Use the confidence level and sample data to find a confidence interval for estimating the population mean. A local telephone company randomly selected a sample of 679 duration of calls. The a sample mean amount was 6.81 min with a population standard deviation of 5.1 min. Construct a confidence interval to estimate the population mean of pulse rate if a confidence level is 99% . Initial Data: E(margin of error result value) = CI(population mean confidence interval result value)=
A sociologist develops a test to measure attitudes about public transportation, and 27 randomly subjects are...
A sociologist develops a test to measure attitudes about public transportation, and 27 randomly subjects are given the test. Their average score is 76.2 and their standard deviation is 21.4. Construct the 95% confidence interval for the mean score of all such subjects. Also find the margin of error. Round your answers to 3 decimal places. a. (66.745,85.655), margin of error=9.455 b. (69.176,83.224), margin of error=7.024 c. (0.178,0.377), margin of error=0.101 d. (67.734,84.666), margin of error=8.466 e. (0.248,0.463), margin of...
Use the confidenve level and sample data to find a confidence interval for estimating the population...
Use the confidenve level and sample data to find a confidence interval for estimating the population mean. A special research company randomly selected a simple random sample of 75 birth weights in US. The mean has of 3433 g with population standard deviation of 495 g of all birth weights in US. Construct a 90% confidence interval to estimate the population mean of birth weights Initial Data: E(margin of error result value) = Cl(population mean confidence interval result value)=
A sociologist develops a test to measure attitudes about public transportation, and 20 randomly selected subjects...
A sociologist develops a test to measure attitudes about public transportation, and 20 randomly selected subjects are given the test. Their mean score is 75 and their standard deviation is 9 Construct 98% confidence interval for the mean score of all such subjects.
Find the margin of error for a​ 95% confidence interval for estimating the population mean when...
Find the margin of error for a​ 95% confidence interval for estimating the population mean when the sample standard deviation equals 90 with a sample size of​ (i) 484 and​ (ii) 1600 ​(i) Find the margin of error for a​ 95% confidence interval for estimating the population mean when the sample standard deviation equals 90 with a sample size of 484 (ii). ​(ii) Find the margin of error for a​ 95% confidence interval for estimating the population mean when the...
Use technology and the given confidence level and sample data to find the confidence interval for...
Use technology and the given confidence level and sample data to find the confidence interval for the population mean muμ. Assume that the population does not exhibit a normal distribution. Weight loss on a diet: 95% confidence, n= 51, X bar= 3.0kg, s=5.3kg What is the confidence interval for the population mean muμ​? Is the confidence interval affected by the fact that the data appear to be from a population that is not normally​ distributed? A. Yes, because the population...
Use the t-distribution to find a confidence interval for a mean given the relevant sample results....
Use the t-distribution to find a confidence interval for a mean given the relevant sample results. Give the best point estimate for , the margin of error, and the confidence interval. Assume the results come from a random sample from a population that is approximately normally distributed. A 99% confidence interval for using the sample results x-bar = 93.8, s = 30.4, and n=15 Round your answer for the point estimate to one decimal place, and your answers for the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT