# An instructor wants to compare final grades of students in her online class and face-to-face class. Instructor selects 10 students randomly from each class and the following table shows the final grades of those students. 5.5 7 6 7 6.5 6 9 6.5 6.5 6.5 The 81st percentile of time students sleep per night is ______hours.

1 answer

###### Question:

An instructor wants to compare final grades of students in her online class and face-to-face class. Instructor selects 10 students randomly from each class and the following table shows the final grades of those students.

5.5

7

6

7

6.5

6

9

6.5

6.5

6.5

The 81st percentile of time students sleep per night is ______hours.

5.5

7

6

7

6.5

6

9

6.5

6.5

6.5

The 81st percentile of time students sleep per night is ______hours.

## Answers

Answer:7 hoursStep-by-step explanation:The formular of percentile is given as;n = (P / 100) * Nwhere;n = ordinal rankP = Percentile N = Number of valuesThe grades are given as;5.5, 7, 6, 7, 6.5, 6, 9 , 6.5, 6.5 , 6.5 Arranging in increasing order;5.5, 6, 6, 6.5, 6.5, 6.5, 6.5, 7, 7, 9n = (81/100) * 10 = 8.1 ≈ 8The 81st percentile is the 8th term.The 8th term = 7

#### Similar Solved Questions

1 answer

### Match each expression with its greatest common factor. 30 points

Match each expression with its greatest common factor. 30 points...

1 answer

### You, as a ghost of Hamlet, have met with a group of guards, write a persuasive speech persuading them to arrest Claudius without informing the hotel or any royal member of the place. In the speech you should persuade them to arrest Claudius and keep him in a cellar until he confesses his doings...your speech should be around 250-300 words. PLS HELP!!! YOU WILL UNDERSATND THIS QUESTION ONLY IF YOU'VE READ HAMELT BY SDHAKESPEARE1

You, as a ghost of Hamlet, have met with a group of guards, write a persuasive speech persuading them to arrest Claudius without informing the hotel or any royal member of the place. In the speech you should persuade them to arrest Claudius and keep him in a cellar until he confesses his doings...yo...

2 answers

### Read the following statements and decide if they are typical of school in the 1800s 1. Did female teachers needed permission to get married? True or false. 2. Teachers had a curfew. True or false. 3. Teachers could not smoke cigarettes. True or false. 4. Students were required to clean the school, including scrubbing floors. True or false. 5. Students had to stand in front of the class and repeat everything they learned. True or false. 6. Students had to walk up to 2miles to get to school. True

Read the following statements and decide if they are typical of school in the 1800s
1. Did female teachers needed permission to get married? True or false.
2. Teachers had a curfew. True or false.
3. Teachers could not smoke cigarettes. True or false.
4. Students were required to clean the school, i...

1 answer

### Which set of numbers can represent the side lengths, in inches, of an acute triangle? 4, 5, 7 5, 7, 8 6, 7, 10 7, 9, 12 Which set of numbers can represent the side lengths, in centimeters, of a right triangle? 8, 12, 15 10, 24, 26 12, 20, 25 15, 18, 20

Which set of numbers can represent the side lengths, in inches, of an acute triangle? 4, 5, 7 5, 7, 8 6, 7, 10 7, 9, 12 Which set of numbers can represent the side lengths, in centimeters, of a right triangle? 8, 12, 15 10, 24, 26 12, 20, 25 15, 18, 20...

2 answers

### A four-sided polygon has these properties of rotation and reflection: When it rotates 360°, it maps onto itself at four different angles of rotation. It can be reflected onto itself across four different lines of reflection. Which kind of polygon must it be?

A four-sided polygon has these properties of rotation and reflection:
When it rotates 360°, it maps onto itself at four different angles of rotation.
It can be reflected onto itself across four different lines of reflection.
Which kind of polygon must it be?...

1 answer

### Can we observe a lunar eclipse during a new moon phase? explain your answer. please help me thx subject is science

can we observe a lunar eclipse during a new moon phase? explain your answer.
please help me thx
subject is science...

1 answer

### Submit the final draft of your report about Robert Hooke. Make sure you answer all the questions in your report.A. In what country did Robert Hooke work? B. During what period of time did Hooke do his research? C. What were some of Hooke's discoveries? D. How were Hooke's discoveries important to the study of cells?

Submit the final draft of your report about Robert Hooke. Make sure you answer all the questions in your report.A. In what country did Robert Hooke work? B. During what period of time did Hooke do his research? C. What were some of Hooke's discoveries? D. How were Hooke's discoveries important to th...

1 answer

### Question 11 (2 points) Press: Can you tell us about this wide publication of atrocity stories? Do you think the publication of them is going to be very useful? General Eisenhower: I think I was largely responsible for it, so I must have thought it was useful. When I found the first camp like that I think I never was so angry in my life.... I think the people at home ought to know what they are fighting for and the kind of person they are fighting. -General Dwight D. Eisenhower, press conference,

Question 11 (2 points)
Press: Can you tell us about this wide publication of atrocity
stories? Do you think the publication of them is going to be very
useful?
General Eisenhower: I think I was largely responsible for it, so I
must have thought it was useful. When I found the first camp like
that I ...

2 answers

### Where was Scott taken by his slaveholder to live?

Where was Scott taken by his slaveholder to live?...

2 answers

### For her essay on the history of the Olympics, which website would provide Ruby with the most reliable information?

For her essay on the history of the Olympics, which website would provide Ruby with the most reliable information?...

1 answer

### If for each 2000 steps you get 1.00 dollar, how many do tou need to get 20,000 dollars

If for each 2000 steps you get 1.00 dollar, how many do tou need to get 20,000 dollars...

2 answers

### Christine has ridden 18 miles of a bike course. The course is 40 miles long. What percentage of the course has Christine ridden so far?

Christine has ridden 18 miles of a bike course. The course is 40 miles long. What percentage of the course has Christine ridden so far?...

1 answer

### Why did Isabella and I Ferdinand ll pay for Columbus’s first journey?

Why did Isabella and I Ferdinand ll pay for Columbus’s first journey?...

1 answer

### Ile procent we wrzesniu 2013 zajmuja soboty i niedziele

ile procent we wrzesniu 2013 zajmuja soboty i niedziele...

2 answers

### Write an e-mail to a government or school official in which you propose an effective solution to a problem in your community or school.

Write an e-mail to a government or school official in which you propose an effective solution to a problem in your community or school....

2 answers

### Where does the energy come from to make ATP in the light reactions? A. From the energy released by NADP+ molecules B. From the potential energy of NADPH molecules C. From the motion of hydrogen ions D. From the energy stored in the mitochondria

Where does the energy come from to make ATP in the light reactions?
A. From the energy released by NADP+ molecules
B. From the potential energy of NADPH molecules
C. From the motion of hydrogen ions
D. From the energy stored in the mitochondria...