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Genrish500 [490]
3 years ago
13

A local school district that the number of school days missed by its teachers is below the national average of 휇=5. A random sam

ple of 28 teachers had a mean of 3.3 days missed by its teachers with a standard deviation of 1.96 days. At 훼=0.05,is there enough evidence to support the district’s claim. You can use either the rejection region or p-value method.
Mathematics
1 answer:
aev [14]3 years ago
8 0

Answer:

do you want to go to the store and get some rest and feel better soon and that is the only way I can get a new one and I will be there at sa diyos to get a new one and I will be there at sa diyos to get

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Just add a random answer
serg [7]
Thx ig lol how are u
8 0
2 years ago
How to calculate square root?
OLEGan [10]
To calculate the square root, you can either use the √symbol on a calculator or you can manually find it using Prime Factorization. For non-perfect squares, Prime Factorization is the way to go. 
 
The first two steps work for solving large perfect squares as well.

1. Divide your number into perfect square factors.

2. Take the square roots of your perfect square factors. 

3. If your number doesn't factor perfectly, reduce your answer to simplest terms. 

4. If needed, estimate. In some cases if you have memorized some of the square roots, you can estimate where the number would be. 
ie.  \sqrt{63}       you know that 7^2 =49 and 8^2 = 64,  so you can estimate that the \sqrt{63} would be between 7 and 8 but closer to 8.

5. <span>Alternatively, reduce your number to its lowest common factors as your first step.</span><span> Finding perfect square factors isn't necessary if you can easily determine a number's prime factors (factors that are also prime numbers).
ie.  </span>\sqrt{45}
 =  \sqrt{9*5}
 = \sqrt{3*3*5}
 =   3 \sqrt{5}

Hope this helped!!!
6 0
4 years ago
In the United States, 20 out of 80 cell phones are recycled every hour. What is the percent of cellphones recycled?
rusak2 [61]

Answer: 25%

20 divided by 80= .25x 100= 25%

5 0
3 years ago
At the James Factory, the assembly line produces 89 pairs of jeans in a batch. The pairs of jeans are packaged in boxes with 11
goldfiish [28.3K]
89-77=12 , there will be 12 pairs of jeans left
6 0
3 years ago
Read 2 more answers
Liliana is using dark power crystals to raise an army of zombies. She has 5 55 dark power crystals, and each crystal can raise 1
Vlad [161]

Answer:

56060550

Step-by-step explanation:

555x101010=56060550

That’s a lot of zombies and I’m scared now.

4 0
3 years ago
Read 2 more answers
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