Construct a 95% confidence interval to estimate the population mean using the following data: x̅=38,s=8.5, n=25 (show work)
Margin of error=_______
Confidence interval=_______
What assumption (if any) did you have to make to construct this interval? ______
Construct a 95% confidence interval to estimate the population mean using the following data: x̅=38,s=8.5, n=25...
Construct a 99% confidence interval to estimate the population mean using the following date: x̅=45, σ=30, n=45(show work) Margin of error= ________ Confidence interveal =________
Construct a 95% confidence interval to estimate the population mean using the data below. What assumptions need to be made about this population? x̅ = 38, s = 7.9, n = 24 1) The 95% confidence interval for the population mean is from a lower limit of ___ to an upper limit of ____ 2) What asssumption should be made a) The population follows the normal probability distribution b) The population follows the Student's t-distribution c) The population distribution is...
Construct a 99% confidence interval to estimate the population mean using the data below. x̅ = 44 σ= 8 n=42 With 99% confidence, when n=42 the population mean is between a lower limit of ___ and an upper limit of ___
Construct a 95% confidence interval to estimate the population mean using the data below. X = 39 o= 10 n=43 With 95% confidence, when n = 43 the population mean is between a lower limit of and an upper limit of (Round to two decimal places as needed.)
Assume that you want to construct a 95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain the specified margin of error for the 95% confidence interval. The sample standard deviation is given below. Margin of error =$5,standard deviation=$25 The required sample size is ????? (Round up to the nearest whole number as needed.)
Construct a 99% confidence interval to estimate the population mean using the data below. X = 46 o = 12 n42 With 99% confidence, when n = 42 the population mean is between a lower limit of (Round to two decimal places as needed.) and an upper limit of Construct a 95% confidence interval to estimate the population mean with X = 102 and o = 25 for the following sample sizes. a) n = 32 b) n = 45...
Construct a 95% confidence interval to estimate the population mean using the data below. x=41 σ=8 n=43 With 95% confidence, when n=43 the population mean is between a lower limit of... and an upper limit of
Assume that you want to construct a 95% confidence interval estimate of a population mean. Find an estimate of the sample size needed to obtain the specified margin of error for the 95% confidence interval. The sample standard deviation is given below. Margin of error equals$5, standard deviation equals$19 The required sample size is __.
X6.2.9-TConstruct the indicated confidence interval for the population mean μ using the t-distribution. Assume the population is normally distributed c = 0.90, x̅ = 12.9, s = 4.0, n = 9 The 90% confidence interval using a t-distribution is 6.2.17-T In a random sample of 26 people, the mean commute time to work was 34.8 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 98% confidence interval for the population mean μ...
Construct a 90% confidence interval to estimate the population mean using the data below. Xbar=24 S=3.4 n=22 What assumption needs to be made about this population? The 90% confidence interval for the population is from a lower limit of— to an upper limit of—