# Question: Construct a 95 confidence interval to estimate the population mean

Construct a 95% confidence interval to estimate the population mean using the following data:

x = 38 σ = 8.5 n = 25

What assumptions need to be made about this population?

x = 38 σ = 8.5 n = 25

What assumptions need to be made about this population?

## Answer to relevant Questions

Construct a 98% confidence interval to estimate the population mean when = 60 and σ = 12.2 for the following sample sizes: a. n = 20 b. n = 40 c. n = 60 With a capacity of 6,300 people, Royal Caribbean’s Oasis of the Seas is the world’s largest cruise ship. The average beer consumption over 15 randomly selected seven day cruises on the ship was 81,740 bottles with a ...Construct a 95% confidence interval to estimate the population mean with = 110 and σ = 30 for the following sample sizes: a. n = 30 b. n = 45 c. n = 60 According to the Centers for Disease Control and Prevention, 20.6% of the U. S. population smoked in 2008. In 2014, a random sample of 650 Americans was selected; 108 of whom smoked. a. Construct a 90% confidence interval ...Michelin Tires would like to estimate the average tire life of its Latitude Tour tire in terms of how many miles it lasts. Determine the sample size needed to construct a 98% confidence interval with a margin of error equal ...Post your question