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Mathematics, 14.07.2020 01:01 Wayne4345
Marissa needs to determine the height of a tree. Holding a drafter's 45° triangle so that one leg
is horizontal, she sights the top of the tree along the hypotenuse, as shown. If she is 6 yards
from the tree and her eyes are 5 feet from the ground, find the height of the tree. Remember: 3
feet in a yard.
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Answers: 3
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Atest of sobriety involves measuring the subject's motor skills. a sample of 31 randomly selected sober subjects take the test and produce a mean score of 64.4 with a standard deviation of 2. a claim is made that the true mean score for all sober subjects is equal to 65. for each part below, enter only a numeric value in the answer box. for example, do not type "z =" or "t =" before your answers. round each of your answers to 3 places after the decimal point. (a) calculate the value of the test statistic used in this test. test statistic's value = (b) use your calculator to find the p-value of this test. p-value = (c) use your calculator to find the critical value(s) used to test this claim at the 0.2 significance level. if there are two critical values, then list them both with a comma between them. critical value(s) =
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Marissa needs to determine the height of a tree. Holding a drafter's 45° triangle so that one leg
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