Would you reject the null hypothesis

Assignment Help Basic Statistics

Reference no: EM131423724

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.

Reference no: EM131423724

Questions Cloud

Relocation due to climate in order to achieve passing grade : Primary Sources: Depression Era T Chart Prepare a comparison T chart that lists the hardships of the people of the 1930s who were affected by the Dust Bowl, and then list similar hardships faced by persons in the United States today or in other count..

Explain why your randomized design is better : A coworker suggested that you give the flat screens to the next 10 employees who need new screens and the standard monitor to the following 10. Explain why your randomized design is better.

Which regression output allows us to conclude : Which regression output allows us to conclude that there is a statistically significant relationship between Y (dependent variable) and any single X variable (independent variable)?

What did this coach do that was most useful : Think about John Wooden, a U. S. sports coach. What did this coach do that was most useful? In what ways did this coach influence your thinking about what coaching really means

Would you reject the null hypothesis : 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?

Describe decision-making scenario using business experience : Describe a decision-making scenario using your business experience, personal decision making or cited journal article; include an example of the decision-making process, describe the risk, and whether persuasion was used.

Principal characteristics of oligarchic democracy : What were the principal characteristics of "oligarchic democracy" in LatinAmerica? How did it differ from "co-optative" democracy?

Long- range communication : For long- range communication, do you prefer e- mail or the telephone? Are some communications more suitable for e- mail and others for the telephone? Why? Are there times when a barrage of e- mail messages leaves you feeling overwhelmed and frustrat..

Quantity theory of money : According to the quantity theory of money, how would a 5% increase in the money supplyaffect the price of goods and services (P), all else equal (up, down, or no change, and byhow much)?

User Account

All Pages