Solution Library

Lowering Defect Rate in Computer Chip Manufacturing Company

Question

A company manufacturing computer chips finds that 8% of all chips manufactured are defective.  Management is concerned that high employee turnover is partially responsible for the high defect rate.  In an effort to decrease the percentage of defective chips, management decides to provide additional training to those employees hired within the last year.  After training was implemented, a sample of 450 chips revealed only 27 defects.  Using a 1% significance level, is there evidence that the additional training effective in lowering the defect rate.

A)         Write the null and alternative hypotheses.

B)         What is the alpha level and critical value?

C)         What is the value of the test statistic?

D)        What is the p-value of the test?

E)         State your conclusion with evidence.

Summary

This question belongs to statistics and discusses about null and alternative hypotheses on lowering defect rate in a computer chip manufacturing company.

Word count: NA

 

Download Full Solution

Comments

  • HWA
    Rasha

    this is a very good website

  • HWA
    maani

    I have 50 questions for the same test your page is showing only 28

  • HWA
    joeanne

    hi can you please help or guide me to answer my assignments. thanks

  • HWA
    joeanne

    hi can anyone help or guide me to my assignments. thanks

  • HWA
    Monik


  • HWA
    Cristina

    This solution is perfect ...thanks

  • HWA
    Janete

    Hello Allison,I love the 2nd image that you did! I also, had never heard of SumoPaint, is something that I will have to exolpre a bit! I understand completely the 52 (or so) youtube videos that you probably watched. Sometimes they have what you want, sometimes they don't! However, it is always satisfying when you are able to produce something that you have taught yourself. Great job!Debra 0 likes

  • HWA
    Sandeep

    Perfect bank of solution. 

  • HWA
    Oxana

    great !

  • HWA
    Paul Brandon-Fritzius

    thanks for the quick response. the solution looks good. :)

  • HWA
    tina Johnson

    thnx for the answer. it was perfect. just the way i wanted it. 

  • HWA
    Giuseppe

    works fine.