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netineya [11]
3 years ago
15

Which number has a 3 with a value 1 tenth

Mathematics
1 answer:
butalik [34]3 years ago
7 0
The answer is 13, contains 1 tenth and a 3

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A server brings 9 bread sticks to a table with 4 people. How many bread sticks each persons gets ?
AURORKA [14]

Answer:

2 1/4

Step-by-step explanation:

Each person gets 2 1/4 bread sticks.

9÷4= 2 1/4

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4 x (5+5)<br> I need the distributive property and the answer please I need it ASAP!
Paraphin [41]
4 x 5 x 5 is 100 if u distribute

Now 5 + 5 x 4 is 25
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3 years ago
How is 7.7 x 1.4 = 10.78
stellarik [79]
Do 77 times 14

770+308=1,078

Divide 1,078 by 100
=10.78
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3 years ago
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What is the volume of a rectangular pyramid with a height of 5.2 meters and a base 8 meters by 4.5 meters
dezoksy [38]

Answer:

62.4

Step-by-step explanation:

1/3*5.2*4.5*8=62.4

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3 years ago
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The mayor of a town has proposed a plan for the construction of an adjoining bridge. A political study took a sample of 1700 vot
lara [203]

Answer:

z=\frac{0.66 -0.63}{\sqrt{\frac{0.63(1-0.63)}{1700}}}=2.562  

p_v =P(z>2.562)=0.0052  

So the p value obtained was a very low value and using the significance level given \alpha=0.02 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can say that at 2% of significance the proportion of voters that favored construction is higher than 0.63 or 63%.

Step-by-step explanation:

Data given and notation

n=1700 represent the random sample taken

\hat p=0.66 estimated proportion of voters that favored construction

p_o=0.63 is the value that we want to test

\alpha=0.02 represent the significance level

Confidence=98% or 0.98

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that percentage of residents who favor construction is more than 63%.:  

Null hypothesis:p \leq 0.63  

Alternative hypothesis:p > 0.63  

When we conduct a proportion test we need to use the z statisitc, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.66 -0.63}{\sqrt{\frac{0.63(1-0.63)}{1700}}}=2.562  

Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level provided \alpha=0.02. The next step would be calculate the p value for this test.  

Since is a right tailed test the p value would be:  

p_v =P(z>2.562)=0.0052  

So the p value obtained was a very low value and using the significance level given \alpha=0.02 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can say that at 2% of significance the proportion of voters that favored construction is higher than 0.63 or 63%.

7 0
3 years ago
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