23 girls have a mean height of 153cm
17 boys have a mean height of 165cm
work out the me...
Mathematics, 04.12.2020 20:20, chubbyxturtle
23 girls have a mean height of 153cm
17 boys have a mean height of 165cm
work out the mean of all 40 children?
plzz help me!!!
pleaseee
Answers: 3
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When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?
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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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