Mathematics, 16.04.2020 04:58 pnhandley01
A medical experiment is PLANNED to compare the herb echinacea with a placebo for preventing colds. One response variable will be "volume of nasal secretions" (if you have a cold, you blow your nose a lot). Suppose the average volume of nasal secretions in people without colds is 4. An increase to 8 indicates a cold. (a) Which of the following describes the meaning of the significance level α for a test of the hypotheses: H0: μ = 4 versus Ha: μ > 4 ? α is the probability of selecting a sample whose data leads us to the decision to reject H0 when in reality μ = 4 is true. α is the probability of selecting a sample whose data leads us to the decision to reject H0 when in reality μ = 8 is true. α is the probability of selecting a sample whose data leads us to the decision to fail to reject H0 when in reality μ = 4 is true. α is the probability of selecting a sample whose data leads us to the decision fail to reject H0 when in reality μ = 8 is true. (b) The power of the test in (a) when the true value of the population mean is μ = 8 is The probability of selecting a sample whose data leads us to the decision to reject H0 when μ = 4 is true. The probability of selecting a sample whose data leads us to the decision to reject H0 when μ = 8 is true. a. The probability of selecting a sample whose data leads us to the decision to fail to reject H0 when μ = 4 is true. b. The probability of selecting a sample whose data leads us to the decision to fail to reject H0 when μ = 8 is true.
Answers: 3
Mathematics, 21.06.2019 21:30, sandersmakaylaovq5vu
Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.
Answers: 1
Mathematics, 22.06.2019 02:30, michelle230
6. sarah saved $12.75 every week for a number of weeks, w. she received an additional $25 during the last week in which she saved money. write and solve an equation to find the number of weeks, w, for which sarah had saved money if she has $114.25 now.
Answers: 3
A medical experiment is PLANNED to compare the herb echinacea with a placebo for preventing colds. O...
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