# Question

A survey of 1200 randomly selected “individual” hotels in China was conducted to determine the number of guests served, annual hotel income, and the average number of hotel employees.

a. If the average number of employees per hotel in the sample was 28, with a sample standard deviation of 12 employees, produce an 85% confidence interval estimate of the average number of employees per individual hotel in the population of all individual hotels in China.

b. If there is a total of 27,500 individual hotels in all of China, use your interval in part a to build an 85% confidence interval estimate of the total number of people in China who are employed by individual hotels.

a. If the average number of employees per hotel in the sample was 28, with a sample standard deviation of 12 employees, produce an 85% confidence interval estimate of the average number of employees per individual hotel in the population of all individual hotels in China.

b. If there is a total of 27,500 individual hotels in all of China, use your interval in part a to build an 85% confidence interval estimate of the total number of people in China who are employed by individual hotels.

## Answer to relevant Questions

It has been reported that American taxpayers spend 6.6 billion hours filling out tax forms each year. You take a random sample of 1500 taxpayers and find the average time filling out tax forms for the sample is 28.4 hours, ...Refer to Exercise 79. Suppose a preliminary estimate of the population standard deviation will come from a pilot sample of five new accountants showing the following values: Determine the appropriate size of the full sample ...Suppose you plan to draw all possible samples of size 64 from a large population with a mean (µ) of 2500 and a standard deviation (σ) of 32. You then will compute the mean (x-bar) for each sample. a. Sketch the sampling ...Graziano Construction has received a large shipment of steel reinforcing rods. The company needs to test a sample of the rods for breaking strength before the rods are installed. The site engineer selects a simple random ...The Census Bureau of the US Department of Commerce estimated that average e-commerce sales for US retailers in the second quarter of 2011 had increased by 3.0 percent from the first quarter of 2011. Along with the estimate, ...Post your question

0