Confidence interval for the differnce in means

Assignment Help Basic Statistics

Reference no: EM1385838

The owner of a local golf course wants to estimate the difference between the average ages of males and females that play on the golf course. He randomly samples 29 men and 21 women that play on his course. He finds the average age of the men to be 37.166 with a standard deviation of 5.232. The average age of the women was 45.582 with a standard deviation of 5.143. He uses this information to calculate a 95% confidence interval for the differnce in means, (-11.41, -5.422). The best interpretation of this interval is which of the following statements?

1) We do not know the population means so we do not have enough information to make an interpretation.

2) We are 95% confident that the difference between the average age of the men and women surveyed is between -11.41 and -5.422

3) We are 95% confident that the difference between the average age of all men and all women who play golf at the course is between -11.41 and -5.422

4) We are 95% sure that the average age difference between all males and females is between -11.41 and -5.422.

5) We are certain that the differece between the average age of all men and all women is between -11.41 and -5.422.

Reference no: EM1385838

Questions Cloud

Nonconsequentialist theory and moral absolutes : The rule nonconsequentialist theories essentially state that there are certain moral absolutes that should never be violated (for example, rules against killing, mutilating, stealing, and breaking promises.)

Metabolic diseases characterized by insulin resistance : Diabetes and obesity are two metabolic diseases characterized by insulin resistance and a low grade inflammation. Seeking an inflammatory factor causative of the onset of insulin resistance.

The primary function of human resource management : The primary function of human resource management is to increase the effectiveness and contribution of employees in the attainment of organizational goals and objectives. Consider all the areas of HRM that have been discussed in class:

Obese adipose tissue : Obese adipose tissue is characterized by infiltration of macrophages. We and others recently showed that a specific subset of macrophages is hired to obese adipose and muscle tissue.

Confidence interval for the differnce in means : The average age of the women was 45.582 with a standard deviation of 5.143. He uses this information to calculate a 95% confidence interval for the differnce in means, (-11.41, -5.422). The best interpretation of this interval is which of the foll..

Confused bricklayer robot problem : The Confused Bricklayer Robot Problem - Draw a picture to illustrate the initial problem situation and how can you describe a possible solution?

Fallen short for businesses or consumers : Looking at the legal environment of business today, discuss where you see the law has fallen short for businesses or consumers.

Determine relative and absolute : Discuss the extent to which you feel such a system is moral or immoral, basing your answer upon whether you feel morality is relative or absolute?

Worldwide distribution of malaria : The sickle cell allele remains quite high populations of those with African Ancestry, and worldwide distribution of the sickle cell gene matches very closely to the worldwide distribution of Malaria.

User Account

All Pages