If X (bar over) = 65, S = 14, n = 49, and assuming that the population is normally distributed construct a 95% confidence interval estimate of the population mean.
( I have the table of critical values for the t distribution but I do understand how to find the solution and plug it in to the formula. Please show all steps and explain how to find it.)
If X overbar=65, S=14, and n=49, and assuming that the population is normally distributed, construct a 99% confidence interval estimate of the population mean, μ.
If X=95, S =5, and n = 49, and assuming that the population is normally distributed, construct a 99% confidence interval estimate of the population mean, u. Click here to view page 1 of the table of critical values for the t distribution. Click here to view page 2 of the table of critical values for the t distribution. (Round to two decimal places as needed.)
If X-67, S-20, and n-49, and assuming that the population is normally distributed, construct a 99% confidence interval estimate of the population mean, μ Click here to view page 1 of the table of critical values for the tdistribution Click here to view page 2 of the table of critical values for the t distribution (Round to two decimal places as needed.)
If X = 70, S = 9, and n= 36, and assuming that the population is normally distributed, construct a 99% confidence interval estimate of the population mean, u. Click here to view page 1 of the table of critical values for the t distribution. Click here to view page 2 of the table of critical values for the t distribution. (Round to two decimal places as needed.)
1. If n=28, (x-bar)=49, and s=6, find the margin of error at a 95% confidence level. Give your answer to two decimal places. 2. In a survey, 10 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $39 and standard deviation of $8. Find the margin of error at a 90% confidence level. Give your answer to two decimal places. 3. If n=20, (x-bar)=50, and s=20, construct...
I X=95, S=16, and n=81, and assuming that the population is normally distributed, construct a 95% confidence interval estimate of the population mean.
If X-bar= 95, S = 22, and n = 64, and assuming that the population is normally distributed: a. Construct a 99% confidence interval for the population mean, μ. b. Based on your answer to part (a), test the null hypothesis that the population mean μ = 101 vs. the alternative that μ ≠ 101. c. What is the probability that μ = 101? d. What is the probability that μ > 101?
If X over = 90, σ = 11, and n = 63, construct a 95% confidence interval estimate of the population mean, μ. i'm not looking for just the answer. If someone could help with the formula and steps so I can understand how to do it.
If Upper X=78, Upper S=15, and n=64, and assuming that the population is normally distributed, construct a 95% confidence interval estimate of the population mean, μ. μ (round to two decimal places) We were unable to transcribe this imageWe were unable to transcribe this image
A random sample of 49 observations is used to estimate the population variance. The sample mean and sample standard deviation are calculated as 59 and 3.1, respectively. Assume that the population is normally distributed. (You may find it useful to reference the appropriate table: chi-square table or F table) a. Construct the 90% interval estimate for the population variance. (Round intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.) Confidence interval b. Construct the...