Purchase Solution

Variation in processing times

Not what you're looking for?

Ask Custom Question

A computer manufacturer is about to unveil a new, faster personal computer. The new machine clearly is faster, but initial tests indicate there is more variation in the processing time. The processing time depends on the particular program being run, the amount of input data, and the amount of output. A sample of 16 computer runs, covering a range of production jobs, showed that the standard deviation of the processing time was 22 (hundredths of a second) for the new machine and 12 (hundredths of a second) for the current machine. At the .05 significance level can we conclude that there is more variation in the processing time of the new machine?

Purchase this Solution
Solution Summary

The variation in processing times for a computer manufacturer is determined. The significance level that is used is 0.05 to determine if there is more variation in the processing time of the new machine.

Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency

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

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

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.

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.

View More Free Quizzes
Related BrainMass Solutions

  • Computer: Is there more variation in the processing time of the new machine?

    Conclusion: At the 0 .05 significance level, the data support the claim that there is more variation in the processing time of the new machine. The expert examines more variation in the processing time of the new machine.

  • Hypothesis Testing for Variation in Processing Time

    192555 Hypothesis Testing for Variation in Processing Time A computer manufacturer is about to unveil a new, faster personal computer. The new machine clearly is faster, but initial tests indicate there is more variation in the processing time.

  • Drive-in banking, McDonald's versus Burger King, and a car rental company

    Assume that both interarrival and transaction processing times are Exponentially distributed (i.e., each CV is 1). a.

  • Use of control charts in performance improvement

    •Explain how the control chart can be used to identify positive and negative trends in performance. Measurement: Turn-around times (TAT) for processing lab tests in the hospital, collection to result.

  • Operations Problem

    So far we ignored the random variation in this system. In reality, there is significant variability arising from many sources and as a result customers are complaining about the long waiting times. List two possible sources of variability.

  • Testing hypotheses based on a given data set

    level can we conclude that there is more variation in the processing time of the new machine See attachment please!

  • Statistics : Statistical Process Control

    ., there is a variation in the process performance. This variation is known as chance variation. Chance variation has many individual causes and each cause results in only a small amount of variation.

  • Hypothesis Testing & ANOVA

    At the .05 level of significance can we conclude that there is more variation in the processing time of the new machine? The following is a partial anova table.

  • Sources of Variation

    5) Re-run an ANOVA in Excel and determine if the average processing times between workers (employees are in rows) are the same or different. 1) The F statistic is formed from the ratio of the two data-model variances.

View More Related Solutions