determine if there is a significant difference between the months June and August, and also between March and August.

The sample data table On-Time Arrivals.jmp (Aviation Consumer Home Page, 1999) contains the percentage of airlines’ planes that arrived on time in 29 airports (those that the Department of Transportation designates “reportable”). You are interested in seeing if there are differences between certain months. (a) Suppose you want to examine the differences between March and June. Is this a situation where a grouped test of two means is appropriate or would a matched pairs test be a better choice? (b) Based on your answer in (a), determine if there is a difference in on-time arrivals between the two months. (c) Similarly, determine if there is a significant difference between the months June and August, and also between March and August.

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….