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Makovka662 [10]
3 years ago
15

NO LINKS- True or false: in figure one points A and D determine a line.

Mathematics
1 answer:
Shtirlitz [24]3 years ago
8 0

Answer:

True

Step-by-step explanation:

because mcdonald's new chilli sauce is awesome

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A theory predicts that the mean age of stars within a particular type of star cluster is 3.3 billion years, with a standard devi
Luden [163]

Answer:

Null hypothesis:\mu \leq 3.3  

Alternative hypothesis:\mu > 3.3  

z=\frac{3.4-3.3}{\frac{0.4}{\sqrt{50}}}=1.768  

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

p_v =P(z>1.768)=0.039  

Step-by-step explanation:

Data given and notation

\bar X=3.4 represent the sample mean  

\sigma=0.4 represent the population deviation for the sample

n=50 sample size  

\mu_o =3.3 represent the value that we want to test  

\alpha represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses to be tested  

We need to conduct a hypothesis in order to determine if the mean is higher than 3.3, the system of hypothesis would be:  

Null hypothesis:\mu \leq 3.3  

Alternative hypothesis:\mu > 3.3  

Compute the test statistic  

We know the population deviation, so for this case is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:  

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)  

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

We can replace in formula (1) the info given like this:  

z=\frac{3.4-3.3}{\frac{0.4}{\sqrt{50}}}=1.768  

P value

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

p_v =P(z>1.768)=0.039  

6 0
3 years ago
Please help me with 11-16 please! Thank you
sasho [114]

11. -1

12. -9

13. 32

14. -15

15. 10

16. 24

3 0
3 years ago
Please answer this question :)
Scorpion4ik [409]

Answer:

5.2692307692307692307692307692308

Step-by-step explanation:

hope this helps!  :)

5 0
3 years ago
Read 2 more answers
Find the slope of the line that passes through (10,9) and (1,5)​
laiz [17]

Answer:

4/9

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Spot eats of a can of dog food each day
Anit [1.1K]

Answer:

$110

Step-by-step explanation:

First we would need to find out how many cans of dog food are required.

To find that you would divide 60 by 3.

60/3 = 20

You would then have to multiply that number by how much it costs for each pair of 3 cans, that being $5.50.

20 * 5.50 = $110

6 0
3 years ago
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