Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 21 Mar 2018 My Price 7.00

New computer monitors

7.74    New computer monitors? The purchasing department has suggested that all new computer monitors for your company should be flat screens. You want data to assure you that employees will like the new screens. The next 20 employees needing a new computer are the subjects for an experiment.

(a)  Label the employees 01 to 20. Randomly choose 10 to receive flat screens. The remaining 10 get standard monitors.

(b)   After a month of use, employees express their satisfaction with their new monitors by responding to the statement “I like my new monitor” on a scale from 1 to 5, where 1 represents “strongly disagree,” 2 is “disagree,” 3 is “neutral,” 4 is “agree,” and 5 stands for “strongly agree.” The employees  with  the flat screens have average satisfaction 4.8 with standard deviation 0.7. The employees with the standard monitors have average 3.0 with standard deviation 1.5. Give a 95% confidence interval for the difference in the mean satisfaction scores for all employees.

(c)   Would you reject the null hypothesis that the mean satisfaction for the two types of monitors is the same versus the two-sided alternative at

significance level 0.05? Use your confidence interval to answer this question. Explain why you do not need to calculate the test statistic.

Answers

Maurice Tutor
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Status NEW Posted 21 Mar 2018 04:03 AM My Price 7.00

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