Mathematics, 23.04.2021 17:00 zitterkoph
Use the traditional method to test the given hypothesis. Assume that the population is normally distributed and that the sample has been randomly selected. Select the appropriate response.
A machine dispenses a liquid drug into bottles in such a way that the standard deviation of the contents is 81 milliliters. A new machine is tested on a sample of 24 containers and the standard deviation for this sample group is found to be 26 milliliters. At the 0.05 level of significance, test the claim that the amounts dispensed by the new machine have a smaller standard deviation.
Select the correct test statistic and conclusion based on the null hypothesis.
Test statistic: χχ2 = 2.370. Reject the null hypothesis.
Test statistic: χχ2 = 3.581. Fail to reject the null hypothesis.
Test statistic: χχ2 = 8.367. Reject the null hypothesis.
Test statistic: χχ2 = 2.370. Fail to reject the null hypothesis.
Answers: 3
Mathematics, 21.06.2019 15:00
Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β
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Mathematics, 21.06.2019 19:00
Apool measures 12.3 feet by 16.6 feet. if the longer wall of the pool has a diagonal of 17.8 feet, what is the volume of the pool? (round to nearest tenth)
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Mathematics, 21.06.2019 19:50
Examine the two-step equation. − 7 4 + x 4 = 2 which property of operations allows you to add the same constant term to both sides? amultiplication property of equality bdivision property of equality caddition property of equality dsubtraction property of equality
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Use the traditional method to test the given hypothesis. Assume that the population is normally dist...
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