# Confidence Interval for Population Proportion

Not what you're looking for?

Please solve the exercise below using Excel and show your work (with formulas).

The production manager for the XYZ Manufacturing company is concerned that the customer orders are being shipped late. He asked one of his planners to check the timeliness of shipments for 1000 orders. The planner randomly selected 1000 orders and found that 120 orders were shipped late. Construct the 99% confidence interval for the proportion of orders shipped late.

##### Purchase this Solution

##### Solution Summary

The solution provides step by step method for the calculation of confidence interval for proportion. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.

##### Solution Preview

Please see the attachments.

Statistics exercise 4

Please solve the exercise below using Excel and show your work (incl. formulas).

The production manager for the XYZ manufacturing company is concerned that the customer orders are being shipped late. He asked one of his ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

##### Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

##### Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.