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Sindrei [870]
3 years ago
8

Your friend Johnny has 27 apples and your other friend has 95 apples now divide to get you answer

Mathematics
1 answer:
tatuchka [14]3 years ago
6 0

Answer:

0.28421052631

Step-by-step explanation:

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What is the meaning of rate​
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rate is the ratio between two related quantities in different units. ... In describing the units of a rate, the word "per" is used to separate the units of the two measurements used to calculate the rate.

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Work out <br> 5/25+2/50+7/100
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The answer is 31/100

Step-by-step explanation:

5/25 + 2/50 + 7/100 = 31/100

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What is the unit rate for You create 18 centerpieces for a party in 6 hours. ​
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Step-by-step explanation:

18centterpieces/6hrs =3

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2 years ago
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According to the Census Bureau, 3.36 people reside in the typical American household. A sample of 25 households in Arizona retir
Mila [183]

Answer:

We conclude that  the mean number of residents in the retirement community household is less than 3.36 persons.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 3.36

Sample mean, \bar{x} = 2.71

Sample size, n =  25

Alpha, α = 0.10

Sample standard deviation, s = 1.10

First, we design the null and the alternate hypothesis

H_{0}: \mu = 3.36\text{ residents per household}\\H_A: \mu < 3.36\text{ residents per household}

We use One-tailed(left) t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} } Putting all the values, we have

t_{stat} = \displaystyle\frac{2.71 - 3.36}{\frac{1.10}{\sqrt{25}} } = -2.95

Now, t_{critical} \text{ at 0.10 level of significance, 24 degree of freedom } =-1.31

Since,                  

t_{stat} < t_{critical}

We reject the null hypothesis and fail to accept it.

Thus, we conclude that  the mean number of residents in the retirement community household is less than 3.36 persons.

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2 years ago
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