Question: State whether and why (or why not) you would expect each of the following data sets to be normally distributed. 19. THE 68-95-99.7 RULE. A

State whether and why (or why not) you would expect each of the following data sets to be normally distributed.

19. THE 68-95-99.7 RULE. A set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to fine the percentage of scores in each of the following categories.

a. Greater than 100

b. Greater than 120

c. Less than 80

d. Less than 140

e. Less than 60

f. Less than 120

g. Greater than 80

h. Between 80 and 120

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!

Answer a question Done 6 myopenmath.com AA 6 Chapter 9.1 Homework Score: 0/9 0/9 answered Progress saved Done (E) 110C. . Question 8 v E 0/1 pt 0 3 2 99 (9 Details A new beta-blocker medication is...

answer a question 5:39 Done myopenmath.com AA C Chapter 9.2 - 9.3 Homework Score: 0/11 0/11 answered Progress saved Done Vo O . . . Question 5 0/1 pt 9 3 99 0 Details Test the claim that the mean GPA...

Question: Community ecologists draw "food webs" to describe the predator and prey relationships between all organisms living in an area. A theoretical model predicts that a measure of the structure...

O Question 1 0/9 pts 9 4 9 0 Details A survey of 38 people was conducted to compare their self-reported height to their actual height. The difference between reported height and actual height was...

all answers must be supported by your work and rounded off as directed. Submit photos or a scan of your completed work Use the following data to answer the first two questions. The test scores for a...

What I Need to Know This module was designed to help you as a learner to illustrate the normal random variable and its characteristics. You can also learn how a normal curve used in our daily life...

Unit 3 Problem Set NAME: Elements of Statistics--FHSU Virtual College--Spring 2017 REMEMBER, these are assessed preparatory problems related to the content of Unit 3. The Unit 3 Exam will consist of...

Unit 3 Problem Set NAME: Elements of Statistics--FHSU Virtual College--Summer 2015 REMEMBER, these are assessed preparatory problems related to the content of Unit 3. The Unit 3 Exam will consist of...

MS1023 Business Statistics w/Comp Apps I Homework #3B - Use Red Par Score Form Chps. 9 & 10: 100 Questions 1. A null hypothesis must always include the equality sign. a) True b) False 2. If the...

Indicate whether the following items are capitalized or expensed in the current year. (a) Purchase cost of a patent from a competitor. (b) Research costs. (c) Development costs (after achieving...

Divide the area of the lot in Problem 12.23 into two equal parts by a line through point B. List in order the lengths and azimuths of all sides for each parcel.

According to the Laffer curve, a tax cut could I. increase tax revenue II. decrease tax revenue III. have no effect on tax revenue IV. act as an automatic stabilizer (A) I only (B) II only (C) III...

The force constant of a massless spring is 2 5 . 0 N / m . A mass of 0 . 4 5 kg is oscillating in simple harmonic motion at the end of the spring

Measuring snakes. For a biology project, you measure the length (inches) and weight (grams) of 12 snakes. (a) Explain why you expect the correlation between length and weight to be positive. (b) If...

What number can I be? (a) What are all the values that a correlation r can possibly take? (b) What are all the values that a standard deviation s can possibly take?

Brain size and intelligence. For centuries people have associated intelligence with brain size. A recent study used magnetic resonance imaging to measure the brain size of several individuals. The IQ...