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Nadya [2.5K]
3 years ago
9

1. There are 25 students who started computer programming in elementary school and 25 students who started computer programming

in middle school. The first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%.
The line plot shows the differences after 10 rerandomizations. Determine whether the difference in the means of the two groups is significant based on the line plot. Explain your answer.

Mathematics
1 answer:
guapka [62]3 years ago
4 0

the answer is attached below

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Answer:

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Step-by-step explanation:

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Answer:

<u>1. 192 books.  </u>

<u>2. 96 books.  </u>

<u>3. 24 books. </u>

Step-by-step explanation:

1. Let's find the volume of each book and the volume of the box, this way:

Volume of a book = 4 * 6 * 1 = 24 inches ³  

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2. If Hardy fills the box completely, what is the greatest number of books that fit into the box?

Greatest number of books = Volume of the box/Volume of a book

Greatest number of books = 4,608/24

Greatest number of books = 192

3. If Hardy fills the box completely with the least number of layers, there will be (blank) books on the bottom layer.

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Greatest number of layers = 8/1 = 8  

Minimum number of layers = Height of the box/Height of a book  

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4. To fill the box completely, Hardy places 8 layers of books in the box. There are (blank) books in each layer.

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Note: Same answer to question 14559894, answered by me today.

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velikii [3]

Answer:

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Step-by-step explanation:

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