Population mean height using the confidence interval

Reference no: EM1393929

A researcher designs an experiment to study the growth of pine trees at an early stage of their development. Towards this objective, a nursery worker records 39 measurements of the heights of 1-year-old pine seedlings. This set of height measurements are recorded in centimeters. Answer the following questions using the Histogram Applet.

1) Make a histogram of seedling heights. Does the data appear to be normally distributed? Explain.

2) Generate a normal quantile plot of height growth. Assess the normality of the height growth distribution using this plot.

3) Construct a 99% confidence interval on the population mean height of all 1-year-old pine seedlings. What are the confidence limits? What statement can be made about the population mean height using the confidence interval?

Reference no: EM1393929

Questions Cloud

Illustrate what steps you could take to address : Examine the way you perceive your co-workers or classmates also the perceptual or attribute, ion errors you are likely to make also discuss illustrate what steps you could take to address those errors. Provide specific e.g. to support your respons..

Optimal order quanity-rop : What is the total expected annual inventory cost at the optimal order quantity? What is the re-order point?

Calculate the observed frequency of cftr alleles : Cystic fibrosis is a chronic lung and digestive disease caused by a mutation in the CFTR gene on chromosome 7. In the United States approximately 39 in 10,000 individuals are affected.

Explain why the escalation is non-rational : You also your co-workers had an in-depth discussion about non rational escalation of commitment. Use your best communication techniques to discuss the following questions: Classify the possible original decisions, the person(s) who could make it a..

Population mean height using the confidence interval : Construct a 99% confidence interval on the population mean height of all 1-year-old pine seedlings. What are the confidence limits? What statement can be made about the population mean height using the confidence interval?

Determine optimal order quantity : Find the optimal order quantity and what is the optimal total ordering cost per year vs. what is that cost with the current policy?

Illustrate what is the more common practice today : With very little in the way of exceptions, the common law required no writing or signature to enter into a contract. The overwhelming numbers of contracts were verbal or oral contracts.

Illustrate what does loyalty to the industry mean : Illustrate what does loyalty to the industry mean, explain how important is it, morally under illustrate what circumstances, and if any also do employees owe loyalty to their employers.

Question on capacity : A battery manufacturing plant normally operates two eight-hour shifts per day and 6 days per week. The manufacturer can produce 375 units per hour.

User Account

All Pages