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2 years ago

Quick please no links or anything just the straight up answer answer both please

Mathematics

2 answers:

ludmilkaskok [199]2 years ago

3 0

Hi hi hi hi hi hi hi hi The answer is D

Ivanshal [37]2 years ago

3 0

The answer is D because:

A straight angle is 180 degree. Those 2 angles MUST equal to 180. So therefore,

(x-10)+(2x+10)=180

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The graph of g(x) = (x + 2)2 is a translation of the

VMariaS [17]

Answer is 763 units thanks

7 0

3 years ago

Carly left for school at 8:15.she left school at 2:45.if she arrived at 8:45,how many hours was she in the school

Ne4ueva [31]

She was in school for 6 hours.

3 0

3 years ago

A punch recipe calls for 4 1/3

enyata [817]

Answer:

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Step-by-step explanation:

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8 0

2 years ago

The product of 4 and a number x is 14

Sever21 [200]

Answer:

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3 years ago

A hypothesis test is conducted at the .05 level of significance to test whether or not the population correlation is zero. If th

finlep [7]

Answer:

Th computed value of the test statistic is 3.597

Step-by-step explanation:

The null and the alternative hypothesis is as follows:

Null Hypothesis:

$\mathbf{H_o:}$ the population correlation coefficient is equal to zero

$\mathbf{H_a:}$ the population correlation coefficient is not equal to zero

The test statistics for Pearson correlation coefficient is thus computed as :

$t =\dfrac{r \sqrt{(n-2)}} { \sqrt{(1-(r)^2)} }$

where;

r = correlation coefficient = 0.60

n = sample size = 25

So;

$t =\dfrac{0.60 \sqrt{(25-2)}} { \sqrt{(1-(0.60)^2)} }$

$t =\dfrac{0.60 \sqrt{(23)}} { \sqrt{(1-0.36} }$

$t =\dfrac{0.60 *4.796} {0.8}$

t = 3.597

Comparing to a critical value of t (23 degrees of freedom two-tailed value) = 2.069

Decision Rule:

Since computed value of t is greater than the critical value of t; We reject the null hypothesis and accept the alternative hypothesis.

Conclusion:

We conclude that the population correlation coefficient significantly differs from 0 at 5% (0.05) level of significance.

6 0

3 years ago