A 95% confidence interval for a sample data from a normally distributed data is (24.9 , 31.5). What is the sample mean of the data?
A 95% confidence interval for a sample data from a normally distributed data is (24.9 ,...
Assuming that the population is normally distributed, construct a 95 % confidence interval for the population mean, based on the following sample size of n=8. 1, 2, 3, 4, 5, 6, 7 , and 19 In the given data, replace the value 19 with 8 and recalculate the confidence interval. Using these results, describe the effect of an outlier (that is, an extreme value) on the confidence interval, in general. Find a 95% confidence interval for the population mean, using...
Assuming that the population is normally distributed, construct a 95% confidence interval for the population mean, based on the following sample size of n = 5. 1, 2, 3, 4, and 30 In the given data, replace the value 30 with 5 and recalculate the confidence interval. Using these results, describe the effect of an outlier (that is, an extreme value) on the confidence interval, in general. Find a 95% confidence interval for the population mean, using the formula or...
Assuming that the population is normally distributed, construct a 95% confidence interval for the population mean, based on the following sample size of .n=7. 1, 2, 3, 4, 5, 6, and 15 <-----this is the data In the given data, replace the value 15 with 7 and recalculate the confidence interval. Using these results, describe the effect of an outlier (that is, an extreme value) on the confidence interval, in general. Find a 95% confidence interval for the population mean,...
Assuming that the population is normally distributed, construct a 95% confidence interval for the population mean, based on the following sample size of n=8.1, 2, 3, 4, 5, 6, 7, and 24 In the given data, replace the value 24 with 8 and recalculate the confidence interval. Using these results, describe the effect of an outlier (that is, an extreme value) on the confidence interval, in general.Find a 95% confidence interval for the population mean, using the formula or technology.Round answer to two decimal places
A sample of 18 observations taken from a normally distributed population produced the following data: 28.1 27.4 25.1 25.1 31.5 23.3 26.2 24.3 28.4 37.1 23.5 28.8 27.5 25.4 27.1 25.4 22.7 22.7 Round your answers to three decimal places a. What is the point estimate of ? b. Make a 95% confidence interval for a. What is the point estimate of b. Make a 95% confidence interval for c. What is the margin of error of estimate for in...
And construct a 95% confidence interval for the population mean for sample B 8.2.13-1 95% confidence interval for the population mean for each of the samples below plain why these Assuming that the population is normally distributed, construct a two samples produce differen t confidence intervals even though they have the same mean and range Full dataset SampleA: 1 1 4 4 5 5 8 8 Sample B: 1 2 3 45 6 7 8 Construct a 95% confidence interval...
You construct a 95% confidence interval for a population mean using a random sample. The confidence interval is 24.9 less thanmuless than31.5. Is the probability that mu is in this interval 0.95? Explain.
[t-interval] A random sample of size 18 is drawn from a population that is normally distributed. The sample mean is 58.5, and the sample standard deviation is found to be 11.5. Determine a 95% confidence interval about population mean. A. [54.04,62.96] B. [52.78,64.22] C. [53.78,63.22] D. [53.18,63.81]
Use technology and the given confidence level and sample data to find the confidence interval for the population mean u. Assume that the population does not exhibit a normal distribution. 95% confidence Weight lost on a diet **3.0 kg n=51 s5.4 kg nd Master- What is the confidence interval for the population mean u? Okg u kg (Round to one decimal place as needed.) Is the confidence interval affected by the fact that the data appear to be from a...
Use the t-distribution to find a confidence interval for a mean μ given the relevant sample results. Give the best point estimate for μ, 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 95% confidence interval for u using the sample results x̄ = 10.7, s=4.5, and n = 30