Evidence that completion time variance is different

Assignment Help Basic Statistics

Reference no: EM131436015

Business and Management

Many farmers craft unique corn mazes in their fields after the growing season. These huge puzzles challenge both children and adults, and increase revenue for farmers. Suppose a farmer has constructed a corn maze so that the mean time for completion is 1.5 hours with variance 0.57 hour².

A random sample of 18 people entering the maze was selected, and the time (in hours) to complete the puzzle was recorded for each. The sample standard deviation was s = 0.34. Is there any evidence the completion time variance is different from the intended variance? Use a = 0.05 and assume the underlying distribution is normal.

Reference no: EM131436015

Questions Cloud

What is the total thermal resistance of cylinder : You can neglect the contact resistance between the shells. What is the total thermal resistance of this cylinder (from surface of radius r1 to outer radius r3).

Explain the importance of understanding your personal ethics : Write a summary of your findings. Address the following:Explain the importance of understanding your personal ethical perspective.Analyze the relationship between personal and professional ethics in psychology.Discuss how the APA decision-making proc..

Statements are true for the economic order quantity : For an inventory item, suppose the demand is 1200/month, lead time is 0.52 weeks, and safety stock is 5. The item cost is $16, the unit ordering cost is $40/order, and the unit carrying cost is $0.80/item/quarter. How many of the statements are true ..

Determine where part of the beam first exits the glass : After reflecting from the upper surface, the beam reflects from the side and bottom surfaces.(a)If the glass is surrounded by air, determine where part of the beam first exits the glass, at point A, B, or C. (b) Repeat part (a), assuming that the ..

Evidence that completion time variance is different : Is there any evidence the completion time variance is different from the intended variance? Use a = 0.05 and assume the underlying distribution is normal.

Equate undocumented immigration with immigration : Most people in the U.S. equate undocumented immigration with immigration from Mexico. However, only about half of undocumented immigrants are from Mexico, and only about 40 percent come to the U.S. across the southern border. What do you think are so..

Estimating projects be harmful and beneficial to projects : How can top-down and bottom-up approaches to estimating projects be harmful and beneficial to projects?in your career which method of that approach do use and why?if you could change it what would you use instead?

Find angular velocities to be same tangential velocities : For satellites to be in synchronous orbits with Earth, should their linear (tangential) velocities, or their angular velocities be equal to Earth's surface value? Provide an example of where you might find angular velocities to be the same while t..

Culture does not include values and communication styles : Class stratification is measured by calculating the disparities in income, wealth, occupational status, and educational attainment among groups in our society. Culture does not include values, communication styles, patterns of thinking, and norms of ..

User Account

All Pages