Question: (10 Point, 3 points each for a) and b), 4 points for 0)) 8. Suppose the population distribution of emotional stability scores of school children

(10 Point, 3 points each for a) and b), 4 points for 0)) 8. Suppose the population distribution of emotional stability scores of school children ages 8-12 is bell-shaped and symmetric, with a mean of 100 and standard deviation of 20. a) What is the probability that a student's scores is higher than 120? b) If we draw a sample of 100 children, what is the probability that the sample mean is higher than 120? c) For a sample of 64 hundred children, what is the probability that the sample mean is within 5 points on both side of the population mean

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. Given the following data: 190 177 177 178 174 166 158 170 178 163 161 191 165 167 171 201 200 200 171 151 182 191 193. Construct a stem-and-leaf display with the stem label 15, 16, 17, 18 19, 20....

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...

a Let Us Try! '\\ Hello! I hope you are having a good day. Before proceeding to Lesson 1, try to read and answer the activity below rst. Let us try rst your understanding of the concept. Get 1/2...

Statistics and probability problems:- Emotional empathy in young adults. According to a theory in psychology, young female adults show more emotional empathy towards others than do males. The Journal...

Please solve statistics problem:- Emotional empathy in young adults. According to a theory in psychology, young female adults show more emotional empathy towards others than do males. The Journal of...

Hello I need help for the below home project. I am going to work on the voice part for the power point but rest of the project needs to be prepared until Saturday 11 am(around noon). This plan is...

Summarize the attached document of the WDR 2018 OVERVIEW Learning to realize education's promise Learning to realize education's promise Assess learning Act on evidence Align actors to make it a...

Write a literature review for your study. See below for an example of a literature review. Your literature review should provide both analysis and synthesis of previous studies as related to the...

!Help me please. (e) Revolution comes, and all taxes and subsidies are abolished. Even better, the consumer finds a new shop that offers bulk discounts. In this shop, footballs cost $4 each if you...

Assignment help :- Emotional empathy in young adults. According to a theory in psychology, young female adults show more emotional empathy towards others than do males. The Journal of Moral Education...

What are the main arguments used by nations to justify protection for particular industries? Which are economic, and which are noneconomic?

Could anyone help me to type the code (Rstudio) ? Let X be a Possion(A) random variable. We have seen in class that. E(X) = Var(X) = X. Suppose that we do not know the true value of A and want to...

Fulton Manufacturing Company makes a product that sells for $64 per unit. Manufacturing costs for the product amount to $24 per unit variable, and $96,000 fixed. During the current accounting period,...

Question 1: At each point indicated by an , draw the individual electric field vectors due to the two positive charges, labeling which is which. In a different colour, draw the net electric field...