Question: Homework Help It is generally believed that nearsightedness affects about 15% of all children. A local elementary school registered 120 incoming kindergarteners. (For parts b-d,

Homework Help

It is generally believed that nearsightedness affects about 15% of all children. A local elementary school registered 120 incoming kindergarteners.(For parts b-d, you must use the appropriate command in your calculator and write what you entered. TI-83/84)

a)Find the mean and standard deviation of the sampling distribution and describe the sampling distribution using the notation(, ).

b)What is the probability that less than 10% of the incoming kindergarteners are nearsighted?

c)What is the probability that more than 15% of the incoming kindergarteners are nearsighted?

d)If this school measures at the 80thpercentile for all incoming kindergarten classes, what proportion of incoming kindergarteners are nearsighted?

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!

Need help with chapter 13 questions . "Sampling distribution models of proportions" 1) It is generally believed that nearsightedness affects about 15% of all children. A local elementary school...

can you please make sure to show work and calculator commands where it can be used. thank you. 1) It is generally believed that nearsightedness affects about 15% of all children. A local elementary...

It is generally believed that nearsightedness affects about 15% of all children. A local elementary school registered 120 incoming kindergarteners. Note that this scenario is talking about a sampling...

Please help attached the explanation thank you Chapter 13 Written Homework Assignment MATH-138 Statistics Directions: On a separate sheet of paper, write out your solutions to the questions below....

This is designed to assess your ability to apply your research design and data analysis skills toward real world problems. A essay addressing the 4 parts below.: Research Question/Theory of...

1-Please provide 5 cross-examination questions for: Chris Moss Dr. Gerry Stein Sydney Payne Terry Preece Leslie Brown Alex Lloyd 2-Explain why/how/if you would use exhibits A, B, C, and D. 3-What...

Please read the questions Question: Think of an asset or strength-based approaches in chapter 4. Again, be specific and explain how these are examples of asset/strength-based thinking explain why? 4...

Please read the questions Question: 1. ) Share a time when you witnessed or experienced deficit model thinking in the classroom AND/OR share an example of a time when you witnessed or experienced an...

Please read the questions Question: Please give an examples of deficit model thinking that you see in chapter 4. Be sure to give specifics and explain how these are examples of deficit model thinking...

Please read the questions Question: In your own words, describe the two orientations that schools can develop, Intercultural Orientation and Assimilationist Orientation. Provide an example...

How well integrated are the leadership styles and corporate cultures at Tesla and Tata motors?

Green Valley issued $ 20,000,000 of general obligation bonds to construct a multipurpose arena. These bonds will be serviced by a tax on the revenue from events held in the arena and will mature in...

A cash budget differs from an income statement because the cash budget does not determine profits or losses excludes depreciation expense uses disbursements and not expenses a . 1 and 2 b . 1 and 3 c...

1.On March 20, 2020, Briggs Company paid $900 cash for a 3-month insurance policy with coverage beginning on April 1. Briggs prepares monthly financial statements. How much insurance expense should...