According to the table below, what is the probability that a student chosen at
random will be...
Mathematics, 09.05.2020 03:57 paulinahunl17
According to the table below, what is the probability that a student chosen at
random will be 16 or older?
Age 13 14 15 16 17 18
Probability 0.01 0.25 0.28 0.30 0.15 0.01
O
A. 0.44
B. 0.41
C. 0.83
D. 0.46
Answers: 3
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Answers: 1
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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) =
Answers: 2
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