What is an approximate 95% confidence interval for the percent of carpooling workers in the population.

Question 1 In a simple random sample of size 400 taken from over 500,000 workers, 21% of the sampled workers are in carpool. What is an approximate 95% confidence interval for the percent of carpooling workers in the population. Question 2 In a simple random sample of 500 students taken from a large university, 150 have undeclared majors. Construct an approximate 85% confidence interval for the percent of students at the university who have undeclared majors.

find the cost of your paper

consider doing a market research study to forecast demand for the office units prior to beginning construction.

Dante Development Corporation is considering bidding on a contract for a new office building complex. Figure 4.17 shows the decision tree prepared by one of Dante’s analysts. At node 1,….

Test the claim that there is a difference in times between two trials.

Mental measurements of young children are often made by giving them blocks and telling them to build a tower as tall as possible. One experiment of block building was repeated….

 Identify the distribution of X—name and parameter(s).

1. When local calls are made in NYC, 60% go through on the first try, and the rest get a busy signal. (We assume there is no third possibility). Let….