Question: In an European country, the average number of children in a family is = 1.24, with standard deviation of = 1.26. Suppose you sample 120

In an European country, the average number of children in a family is = 1.24, with standard deviation of = 1.26. Suppose you sample 120 families and calculate the mean number of children.

(a) (6 points) What percentage times you will get a mean larger than 1? (b) (6 points) Now suppose you don't know the value of , but you still know = 1.26. You sample 63 families and you observe the average number of children is 3.142. Calculate a 95% confidence interval for .

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

1. A group of policy analysts offered a group of 317 students in Kenya education subsidies. They followed the students and observed their average number of years of education is 8.2 years. The...

1. The probability that a certain hockey team will win any given game is 0.3787 based on their 13 year win history of 392 wins out of 1035 games played (as of a certain date). Their schedule for...

Describing Data Once we have collected data from surveys or experiments, we need to summarize and present the data in a way that will be meaningful to the reader. We will begin with graphical...

Possible Multiple Choice Questions for the Exam. Focus on the topics discussed in class. Chapter 1 Multiple Choice Identify the choice that best completes the statement or answers the question. ____...

1. Suppose that an accounting firm does a study to determine the time needed to complete one person's tax forms. It randomly surveys 200 people. The sample average is 23.1 hours. There is a known...

2.In a geology course, students were learning to use a balance scale to make accurate weighings of rock samples. One student plans to weigh a rock 20 times and then calculate the average of the 20...

Print View 1. 8/21/16, 8:19 PM Award: 10.00 points A United Nations report shows the mean family income for Mexican migrants to the United States is $25,980 per year. A FLOC (Farm Labor Organizing...

Group: PERON A+ PERSON B +PERSON C 1- Introduction 2- Literature a. Definition of operation management b. Definition of operation strategy and why it is important c. Components of operations strategy...

Name: E number: Math 1530 section number Question 1 (2.85 points) Eggs that are contaminated with salmonella can cause food poisoning among consumers. A large egg producer takes an SRS of 200 eggs...

Exercises Chapter 2 2.1 Marginal and conditional probability: The social mobility data from Section 2.5 gives a joint probability distribution on (Y1 , Y2 )= (father's occupation, son's occupation)....

Assuming that the load impedance is to be purely resistive, what load should be connected to terminals a-b of the circuits in Fig. 11.52 so that the maximum power is transferred to the load? 100 10...

Go to Connect for the financial statements of RONA Inc. and related notes. Required: 1. Use the companys statement of financial position to determine the amounts in the accounting equation (A 5 L 1...

Question 1 0 1 pts A single lump sum payment from a lottery payment that you receive 5 years from now is considered the present value. Thue False

A hula hoop and solid disc of equal radii are rolled, from rest and without slipping, down an incline plane. Which one will reach the bottom of the inclined plane first? Explain.

Explain the three steps of the planning phase of the strategic marketing process. LO.1

Discuss how an organization assesses where it is now and where it seeks to be. LO.1

Describe the four components of the implementation phase of the strategic marketing process. LO.1