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4 years ago

Find the measure of ∠G

Mathematics

1 answer:

murzikaleks [220]4 years ago

4 0

So the right answer is 71 degree 

Look at the attached picture

Hope it will help you

good luck on your assignment

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Write an equivalent expression for (116)5.

Radda [10]

Answer:

580 is the answer i thik its helps u tqq

3 0

3 years ago

Tim claims that a coin is coming up tails less than half of the time. In 110 tosses, the coin comes up tails 47 times. Using P-v

lilavasa [31]

Answer:

$z=\frac{0.427 -0.5}{\sqrt{\frac{0.5(1-0.5)}{110}}}=-1.531$

$p_v =P(z$

If we compare the p value obtained and using the significance level given $\alpha=0.1$ we have that $p_v$ so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 10% of significance the proportion of tails is significantly less than 0.5.

Step-by-step explanation:

1) Data given and notation

n=110 represent the random sample taken

X=47 represent the number of tails obtained

$\hat p=\frac{47}{110}=0.427$ estimated proportion of tails

$p_o=0.5$ is the value that we want to test

$\alpha=0.1$ represent the significance level

Confidence=90% or 0.90

z would represent the statistic (variable of interest)

$p_v$ represent the p value (variable of interest)

2) Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the proportion of tails is lower than 0.5:

Null hypothesis: $p\geq 0.5$

Alternative hypothesis: $p < 0.5$

When we conduct a proportion test we need to use the z statistic, 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 $p_o$ .

3) Calculate the statistic

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

$z=\frac{0.427 -0.5}{\sqrt{\frac{0.5(1-0.5)}{110}}}=-1.531$

4) 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 $\alpha=0.1$ . The next step would be calculate the p value for this test.

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

$p_v =P(z$

6 0

3 years ago

Evalvate functions helppp!?

AURORKA [14]

The answer is 19.. substitute -1 into the function whenever you see x put -1 there. This implies that 3+16 =19

6 0

3 years ago

The table below shows the cumulative amount of money that George saved over the course of several weeks.

noname [10]

Answer:

Step-by-step explanation:

8 0

3 years ago

Write the first four terms in the following sequences. A(n+1)=A(n)−5 for n≥1 and A(1)=9 .

luda_lava [24]

Answer:

Step-by-step explanation:

A(1) = 9

A(n+1) = A(n) - 5

n = 1 ; A(1+1) = A(1) - 5

A(2) = 9 - 5

A(2) = 4

n = 2 ; A(2+1) = A(2) - 5

A(3) = 4 - 5

A(3) = 1

n = 3 ; A(3+1) = A(3) - 5

A(4) = 1 - 5

A(4) = -4

n = 4 ; A(4+1) = A(4) - 5

A(5) = -4 - 5

A(5) = -9

First four terms are: 9 , 4 , 1 , -4 , - 9

4 0

3 years ago