# Question

According to Expedia.com, workers in Italy lead the world in paid vacation days, averaging 42 days per year. The following data show the number of paid vacation days for a random sample of 20 Italian workers. These data can also be found in the Excel file titled paid vacation. xlsx.

a. Construct a 95% confidence interval to estimate the average number of paid vacation days for Italian workers.

b. Do the results from this sample validate Expedia. com’s findings?

c. Verify this interval using Excel.

d. What assumptions need to be made about this population?

a. Construct a 95% confidence interval to estimate the average number of paid vacation days for Italian workers.

b. Do the results from this sample validate Expedia. com’s findings?

c. Verify this interval using Excel.

d. What assumptions need to be made about this population?

## Answer to relevant Questions

AAA reported that the average price of regular gasoline in Pennsylvania was $ 3.65 per gallon. The following data show the price per gallon of regular gasoline for 15 randomly selected stations in the state. These data can ...Determine the margin of error for a 95% confidence interval to estimate the population proportion with a sample proportion equal to 0.70 for the following sample sizes: a. n = 125 b. n = 200 c. n = 250 Determine the sample size needed to construct a 95% confidence interval to estimate the population mean when σ = 40 and the margin of error equals 6. Herr Foods, a producer of a variety of salty snacks, would like to estimate the average weight of a bag of BBQ potato chips produced during the filling process at its Nottingham, Pennsylvania, plant. Determine the sample ...Radon is a colorless and odorless radioactive gas that can accumulate in residential homes. High levels of exposure can lead to health problems such as lung cancer. Radon levels are measured in units of picocuries per liter ...Post your question

0