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steposvetlana [31]
3 years ago
5

Someone help me with this ASAP I’ll mark u as brilliant

Mathematics
1 answer:
Fiesta28 [93]3 years ago
4 0

Answer:5.7

Step-by-step explanation:

adjacent=5.5

Hypotenuse=x

theta=50°

cos(theta)=adjacent ➗ hypotenuse

Cos50=5.5 ➗ x

0.9650=5.5 ➗ x

Cross multiplying we get

0.9650 x x=5.5

Divide both sides by 0.9650

(0.9650 x x)/0.9650=5.5/0.9650

x=5.7

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Rzqust [24]

Using a t-distribution calculator, the p-value is of 0.052, hence the range that contains the p-value is an interval between a number less than 0.05 and a number greater than 0.05.

<h3>How to find the p-value of the t-distribution?</h3>

To find the p-value of the t-distribution, three information, which are the inputs on the calculator are needed:

  • The test statistic.
  • The number of degrees of freedom.
  • The tail of the test.

In this problem, we have that:

  • The test statistic is of t = -1.788.
  • The number of degrees of freedom is of 10.
  • We are testing if the mean is less than a value, hence we have a left-tailed test.

Hence, using a calculator, it is found that the p-value is of 0.052, hence the range that contains the p-value is an interval between a number less than 0.05 and a number greater than 0.05.

More can be learned about the t-distribution at brainly.com/question/13873630

#SPJ1

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