A group of students take a Statistics Exam where the average was M = 85 and the standard deviation was SD = 6.8. Answer the following questions regarding this distribution using your normal curve table. Depending on the problem, be sure to identify the raw scores, Z scores, what in particular you shaded when creating a curve and the final answer. Write out your calculations. Draw your normal curve- include the mean location, your score(s) location(s), and shade the area(s) you are looking for. The % from the normal curve table. The final answer.   If you score a 99, what percentage of the population scored above you?   Calculations: Normal Curve: % from z-table: Final Answer:   What raw score is needed to be in the top 8%?   Calculations: Normal Curve: % from z-table: Final Answer:   What range of raw scores makes up the middle 40%?   Calculations: Normal Curve: % from z-table: Final Answer:

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Part 2

A group of students take a Statistics Exam where the average was M = 85 and the standard deviation was SD = 6.8. Answer the following questions regarding this distribution using your normal curve table. Depending on the problem, be sure to identify the raw scores, Z scores, what in particular you shaded when creating a curve and the final answer.

  1. Write out your calculations.
  2. Draw your normal curve- include the mean location, your score(s) location(s), and shade the area(s) you are looking for.
  3. The % from the normal curve table.
  4. The final answer.

 

  1. If you score a 99, what percentage of the population scored above you?

 

Calculations:

Normal Curve:

% from z-table:

Final Answer:

 

  1. What raw score is needed to be in the top 8%?

 

Calculations:

Normal Curve:

% from z-table:

Final Answer:

 

  1. What range of raw scores makes up the middle 40%?

 

Calculations:

Normal Curve:

% from z-table:

Final Answer:

 

  1. If you score an 80, what percentage of the population scored above you?

 

Calculations:

Normal Curve:

% from z-table:

Final Answer:

 

  1. What percentage of the population lands between the raw scores of 82 and 107?

 

Calculations:

Normal Curve:

% from z-table:

Final Answer:

 

  1. If you score a 85, what percentage of the population scored above you?

 

Calculations:

Normal Curve:

% from z-table:

Final Answer:

 

  1. What raw score is needed to be in the bottom 16%?

 

Calculations:

Normal Curve:

% from z-table:

Final Answer:

 

  1. If you score a 96, what percentage of the population scored above you?

 

Calculations:

Normal Curve:

% from z-table:

Final Answer:

 

  1. What percentage of the population lands between the raw scores of 83 and 100?

 

Calculations:

Normal Curve:

% from z-table:

Final Answer:

 

  1. If you score a 85, what percentage of the population below you?

 

Calculations:

Normal Curve:

% from z-table:

Final Answer:

 

 

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